Full technical review FNIRSI 2C23T 2C53T | Specs, Features & Feedback

Product Introduction

The FNIRSI 2C23T and 2C53T represent a significant leap in portable electronic testing equipment, offering a powerful 3-in-1 solution for a wide array of professionals and enthusiasts. These dual-channel digital oscilloscopes are meticulously designed to address the multifaceted needs of maintenance technicians, R&D engineers, educators, and hobbyists, consolidating an oscilloscope, a multimeter, and a signal generator into a single, compact device. This integration solves the common problem of needing multiple bulky instruments for field diagnostics or bench work, providing unparalleled convenience and efficiency. Their unique FPGA+MCU/ARM+ADC architecture, coupled with robust built-in high-voltage protection up to ±400V peak, ensures both high performance and safety. Whether for intricate circuit debugging, precise component measurement, or generating test signals, the FNIRSI 2C23T and 2C53T series stand out as versatile, reliable, and indispensable tools in any electronics toolkit. Check out our other technical reviews for more hardware testing.

Hardware specifications

Core Specifications: FNIRSI 2C23T 2C53T

Model Numbers: 2C23T / 2C53T
Display: 2.8-inch HD color screen with 320×240 pixels resolution
Charging: USB Type-C (5V/1A)
Battery: 3000mAh Lithium battery, non-demountable
Standby Time: Up to 6 hours (laboratory theoretical maximum)
Dimensions: 167 x 89 x 35 mm
Weight: Approximately 300g
Certifications: CE, EAC, RoHS, WEEE
Origin: Mainland China
Architecture: FPGA+MCU/ARM+ADC with built-in high-voltage protection (±400V peak)

Oscilloscope Parameters

Channels: Dual-channel
Input Impedance: 1MΩ
Maximum Measured Voltage: ±400V
Trigger Mode: AUTO / Normal / Single
Trigger Type: Rising edge, Falling edge
Display Mode: Y-T / Scroll (2C23T), Y-T / Rolling / X-Y (2C53T)
Coupling: AC / DC
Waveform Screenshot: Supported
Export Waveform Image: Supported
Cursor Measurement: Supported (2C53T)
Persistence: OFF, 500ms, 1s, ∞ (2C53T)
Math Functions: 8 basic operations + FFT (2C53T)

FNIRSI-2C23T Specific Oscilloscope Parameters

Sample Rate: 50MS/s
Analog Bandwidth: 10MHz (independent dual-channel)
Storage Depth: 32KB
Time Base Range: 50ns – 10s
Vertical Sensitivity: 20mV/div – 10V/div (X1)

FNIRSI-2C53T Specific Oscilloscope Parameters

Sample Rate: 250MS/s
Analog Bandwidth: 50MHz (independent dual-channel)
Storage Depth: 1Kpts
Time Base Range: 10ns – 20s
Vertical Sensitivity: 10mV/div – 10V/div (X1)

Multimeter Parameters

Diode Test: Supported
Continuity Test: Supported
Live Line Detection: Supported
Temperature Measurement: –55°C to 1300°C (–67°F to 2372°F) with ±(2.5%+5) accuracy

FNIRSI-2C23T Specific Multimeter Parameters

Display Count: 4-digit 10000-count true RMS
DC Voltage: 9.999V – 999.9V with ±(0.5%+3) accuracy
AC Voltage: 9.999V – 750.0V with ±(1%+3) accuracy
DC Current: 9999μA – 9.999A with ±(1.2%+3) accuracy
AC Current: 9999μA – 9.999A with ±(1.5%+3) accuracy
Resistance: 999.9Ω – 99.99MΩ with ±(0.5%+3) for lower ranges and ±(1.5%+3) for 99.99MΩ
Capacitance: 9.999nF – 99.99mF with ±(2.0%+5) for lower ranges and ±(5.0%+20) for 9.999mF/99.99mF

FNIRSI-2C53T Specific Multimeter Parameters

Display Count: 4.5-digit 19999-count true RMS
DC Voltage: 1.9999V / 19.999V / 199.99V / 1000V with ±(0.5%+3) accuracy
AC Voltage: 1.9999V / 19.999V / 199.99V / 750.0V with ±(1%+3) accuracy
DC Current: 19.999mA / 199.99mA / 1.9999A / 9.999A with ±(1.2%+3) accuracy
AC Current: 19.999mA / 199.99mA / 1.9999A / 9.999A with ±(1.5%+3) accuracy
Resistance: 199.99Ω / 1.9999KΩ / 19.999KΩ / 199.99KΩ / 1.9999MΩ / 19.999MΩ with ±(0.5%+3) for lower ranges and ±(1.5%+3) for 19.999MΩ
Capacitance: 9.999nF / 99.99nF / 999.9nF / 9.999uF / 99.99uF / 999.9uF / 9.999mF / 99.99mF with ±(2.0%+5) for lower ranges and ±(5.0%+20) for 9.999mF/99.99mF

Signal Generator Parameters

Channel: Single channel

FNIRSI-2C23T Specific Signal Generator Parameters

Waveforms: 7 types (Sine, Square, Triangle, Full Wave, Half Wave, Noise, DC)
Output Frequency: 1Hz – 2MHz (with 1Hz step adjustment)
Output Amplitude: 0.1 – 3.3V (customizable)

FNIRSI-2C53T Specific Signal Generator Parameters

Waveforms: 13 types (Sine, Square, Sawtooth, Half Wave, Full Wave, Positive Step, Negative Step, Exponential Rise, Exponential Fall, DC, Multi-audio, Sinker Pulse, Lorentz)
Output Frequency: 0 – 50kHz (with 1Hz step adjustment)
Output Amplitude: 0 – 3V (customizable)
Output Duty Cycle: 0 – 100% (customizable)

Available Versions

Available Versions & Selection Guide

The FNIRSI 2C23T and 2C53T are available in both Standard and Optional versions, each tailored to different user needs and accessory requirements.
FNIRSI 2C23T Standard Version includes: 1x 2C23T Oscilloscope, 1x P6100 Probe, 1x Crocodile Clip Probe, 1x Multimeter Probe, 1x Type-C Charging Cable, 1x User Manual, and 1x Packaging Box.
FNIRSI 2C23T Optional Version includes: 1x 2C23T Oscilloscope, 2x P6100 Probes, 1x Crocodile Clip Probe, 1x Multimeter Probe, 1x Type-C Charging Cable, 1x User Manual, and 1x Packaging Box.
FNIRSI 2C53T Standard Version includes: 1x 2C53T Oscilloscope, 1x 10X P6100 Probe, 1x Crocodile Clip Probe, 1x Multimeter Probe, 1x Type-C Charging Cable, 1x Storage Handbag, 1x User Manual, and 1x Packaging Box.
FNIRSI 2C53T Optional Version includes: 1x 2C53T Oscilloscope, 2x 10X P6100 Probes, 1x Crocodile Clip Probe, 1x Multimeter Probe, 1x Type-C Charging Cable, 1x Storage Handbag, 1x User Manual, and 1x Packaging Box.

Package Contents

What’s in the Box?

Depending on the chosen version (Standard or Optional for 2C23T or 2C53T), the package contents will vary. All versions include the core oscilloscope unit, a crocodile clip probe, a multimeter probe, a Type-C charging cable, a user manual, and a packaging box. The key difference lies in the number and type of oscilloscope probes: the 2C23T Standard comes with one P6100 probe, while the 2C23T Optional includes two P6100 probes. For the higher-performance 2C53T, the Standard version provides one 10X P6100 probe, and the Optional version includes two 10X P6100 probes. Additionally, both 2C53T versions come with a convenient storage handbag for enhanced portability and protection.

Features and benefits

Why I love FNIRSI 2C23T 2C53T

The FNIRSI 2C23T and 2C53T devices offer an exceptional 3-in-1 functionality, integrating a dual-channel digital oscilloscope, a comprehensive multimeter, and a versatile signal generator into a single handheld unit. This consolidation eliminates the need for multiple separate tools, significantly reducing clutter on the workbench or in the field, and providing immense value and convenience for professionals and hobbyists alike.
The dual-channel oscilloscope capability is a critical feature, allowing users to simultaneously observe and compare two different signals. This is invaluable for analyzing phase relationships, troubleshooting complex digital and analog circuits, and understanding signal interactions, providing a deeper insight into circuit behavior than single-channel devices.
For demanding applications, the FNIRSI 2C53T stands out with its upgraded 250MS/s sampling rate and 50MHz analog bandwidth. This higher specification enables the capture of faster and more precise signal details, making it suitable for analyzing high-frequency components and transient events that lower bandwidth oscilloscopes might miss, ensuring accurate diagnostics in advanced electronic projects.
Both models boast robust multimeter functions, with the 2C53T featuring a 4.5-digit 19999-count true RMS display, while the 2C23T offers a 4-digit 10000-count true RMS. This true RMS capability ensures accurate measurements of AC voltage and current, even for non-sinusoidal waveforms, which are common in modern electronics. The extensive measurement ranges cover DC/AC voltage and current, resistance up to 99.99MΩ, capacitance up to 99.99mF, and temperature from -55°C to 1300°C, alongside diode, continuity, and live line detection, making it a highly versatile diagnostic tool.
The integrated DDS signal generator provides a powerful means to test circuit responses by outputting various waveforms. The 2C53T offers 13 types of waveforms (including Sine, Square, Sawtooth, Exponential Rise/Fall, Lorentz, and more) with an output frequency up to 50kHz, while the 2C23T provides 7 types up to 2MHz. Both allow for 1Hz step adjustment and customizable amplitude and duty cycle, enabling precise signal injection for component testing, frequency response analysis, and system calibration.
Designed for practical use, these devices feature a compact form factor (167x89x35 mm, approx. 300g) and a vibrant 2.8-inch 320×240 HD color screen, ensuring portability and clear data visualization. The inclusion of a 3000mAh rechargeable lithium battery provides up to 6 hours of theoretical standby time, supported by convenient Type-C charging, making it an ideal companion for on-site troubleshooting or extended use without constant recharging. Furthermore, the FPGA+MCU/ARM+ADC architecture with ±400V peak high-voltage protection enhances reliability and user safety, safeguarding the device from accidental overloads.

Pros and Cons

Strengths & Weaknesses:

What I Like

Comprehensive 3-in-1 functionality (Oscilloscope,
Multimeter, Signal Generator) for versatile use.
Dual-channel oscilloscope for simultaneous signal analysis and comparison.
High sampling rate (250MS/s) and bandwidth (50MHz) on the 2C53T for precise high-frequency measurements.
True RMS multimeter with high count (up to 19999 for 2C53T) for accurate AC measurements.
Wide range of multimeter functions including voltage, current, resistance, capacitance, temperature, diode, continuity, and live line detection.
Versatile signal generator with multiple waveform types (up to 13 for 2C53T) and adjustable parameters.
Robust FPGA+MCU/ARM+ADC architecture with built-in ±400V high-voltage protection.
Portable and compact design (167x89x35 mm, 300g) with a clear 2.8-inch HD color display.
Long theoretical standby time of up to 6 hours with a 3000mAh rechargeable battery and Type-C charging.
Ability to save waveform screenshots and export images for documentation and analysis.
Comes with a hard carrying case for the 2C53T, enhancing protection and organization.

Points to Consider

Battery life can be shorter than theoretical maximum in practical use, as noted by some users.
The product title can be misleading regarding the 50MHz bandwidth, as the 2C23T model is limited to 10MHz.
Some users reported issues with the user interface, particularly with trigger functionality and navigation.
Firmware updates might be challenging to access, with some users noting availability only on Chinese websites.
Lack of an explicit «back» button for navigation in some functions.
The quality of included test probes might be perceived as lower by some users.
The 2C23T model has a lower sampling rate (50MS/s) and bandwidth (10MHz) compared to the 2C53T.
Some users desire better resolution for temperature measurements (with decimals) and ESR measurement in capacimeter mode.

Price and Availability

Where to Buy & Customer Reviews

Check Price on AliExpress (Best Value)

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Store info

STORE

⭐ 98.6% Positive Feedback | 123.0K Followers

Name:	FNIRSI Official Store
Store no.:	2939001
Location:	China
Open since:	Feb 26, 2017

Detailed seller ratings

Item as Described	4.9 Above Average
Communication	4.9 Above Average
Shipping Speed	4.9 Above Average

OTHER GOODS

User reviews

User Reviews & Feedback Analysis ⭐ 4.8 (1604) | Sold 5,000+

Reviews FNIRSI 2C23T 2C53T

Authentic Feedback Analysis:
⭐ 5.0/5 | a***r: 100% recommended seller, not so much the parcel service, they only came once and late, not on the maximum date indicated, and I wasn’t home at that moment, and since I didn’t receive it that day, they didn’t come back. I had to go pick it up at the parcel office. THIS IS NOT THE SELLER’S FAULT, HE SENT IT ON THE CORRECT DATE AND THEY RESPONDED IMMEDIATELY WHEN I ASKED ABOUT THE PACKAGE, THAT’S WHY IT WAS THE PARCEL SERVICE’S FAULT.
⭐ 4.0/5 | J***a: Arrived in 14 days, I’ve been checking it and it seems very good to me, I’ve shown it and the truth is it seems very good and precise, the only detail I see is that the battery doesn’t last long but everything else is ok.
⭐ 5.0/5 | V***o: To say the least, FANTASTIC…!!! I haven’t had a chance to try all the functions yet, but I really appreciated it as a multimeter because of its stability and precision. I had recently bought a multimeter of another brand, but it was lacking in low-value resistance measurements because it was very unstable, while as a capacimeter, below 1nF it was imprecise and hardly read pF. This FNIRSTI 2C53T multimeter measures the same value of the same resistance every time without being unstable, and I measured a 15 pF capacitor perfectly. Really satisfied…!!!
⭐ 5.0/5 | V***N: Waiting to test it.
⭐ 5.0/5 | R***u: A trainee person had stored it in a wrong place when I was there to claim the parcel it did not exist, not friendly to use, big trigger problems, no grit illumination, not worth the money.
⭐ 5.0/5 | AliExpress Shopper: A very cool tool at a reasonable price point!!
⭐ 5.0/5 | d***g: A+ seems to work great.
⭐ 5.0/5 | AliExpress Shopper: Arrived as I expected. Would recommend the seller.
⭐ 5.0/5 | D***e: Arrived with fully intact retail packaging in shrink wrap. Excellent quality. It has a very nice hard case to house and protect the scope with places for all the needed accessories. Great value for money.
⭐ 5.0/5 | A***r: As described, fast delivery and packed for transport very appropriately. Thanks.
⭐ 5.0/5 | AliExpress Shopper: As described, nice quality, amazingly fast shipping, and very collaborative and responsive seller. very happy with this product.
⭐ 5.0/5 | U***r: As described. Thank you.
⭐ 5.0/5 | i***u: As expected, very good quality from FNIRSI.
⭐ 1.0/5 | AliExpress Shopper: As of 07/05, I have not received the product, stock in Brazil. Purchase on 11/04, either problems with the post office or diversion. The post office deadline ends in 7 days. We will wait to see if they will deliver.
⭐ 4.0/5 | c***n: Attention, check carefully that you are ordering the correct model, 23 and 53 are quite different.
⭐ 5.0/5 | AliExpress Shopper: I haven’t used it yet but it arrived exactly as shown in the publication with the accessories, its delivery was fast, it looks good.
⭐ 5.0/5 | f***z: Although the order took time, it looks good and as described, now I just need to use it and I will give more information.
⭐ 5.0/5 | P***A: I had many doubts, also because it is my first purchase of a certain value here on AliExpress: instead, everything went well, if not very well! The instrument also arrived in a short time, about ten days, and perfectly packaged. All the listed features, from a brief test, seem to correspond, although the usage menu is not so immediate to use: I will have to study it a bit, also with the help of the numerous video tests available on the web. In my electronic laboratory, where I engage in many audio.HiFi constructions and tests, I have other instruments, even more professional than this, but all separate: this one, however, is characterized precisely by incorporating several instruments into one, very useful for measurements, when needed, externally. It also arrived with batteries already charged and a complete set of accessories (I chose the complete set).
⭐ 5.0/5 | AliExpress Shopper: Awesome tool, highly recommended.
⭐ 5.0/5 | 8***r: Awesome upgrade unit. Pay attention that you’re not getting the 2C23T…mine was junk and one of the osc channels was nearly dead. Hope I get my money back or I am DONE with Ali. THIS model, the 2C53T, is awesome. Comes well packed in its carrying case and super organized. Box was padded to take on the apocalypse. Unit works to within 1% tolerances or less. That’s approaching benchtop unit accuracy….(!). Couldn’t be happier and wish I’d used this seller first and gotten the upgraded unit. If it doesn’t have the carrying case, it’s NOT the updated unit and trust me, there’s a BUNCH of small things that add up to a LOT- I have both side by side and the 53T wins hands down.
⭐ 2.0/5 | G***n: Awesome, love the meter for the price.
⭐ 5.0/5 | r***y: Awesome. includes leads, is powered by rechargeable battery. in addition to multimeter and scope also has signal generator. instructions are in Chinese with the last part of the book in English. nice carrying case. I have an old sony home theater that is inoperative. now with this i have no excuse to not troubleshooting. lol
⭐ 5.0/5 | M***a: Beautiful and very useful multitester. I am studying all its functions with interest. It has a solid appearance with a rightly heavy case and well-protected by protective materials. The screen is readable and bright. I am very satisfied! Michele Festa
⭐ 5.0/5 | AliExpress Shopper: Best product ever. love this meter/oscilloscope. Works great.
⭐ 5.0/5 | A***I: Good 👍
⭐ 5.0/5 | a***r: Well packaged, fast delivery (10 days) and complete, the only observation is that the BNC connector of channel one is a bit stiff compared to the other two.
⭐ 5.0/5 | A***z: Well packed and very fast shipping.
⭐ 5.0/5 | J***a: Good product, it’s time to put it to the test.
⭐ 4.0/5 | c***s: Good product arrived as expected.
⭐ 5.0/5 | AliExpress Shopper: Good product! Light and functional! I recommend the FNIRSI brand! 👍
⭐ 2.0/5 | G***D: Hello, I received the device today and I am disappointed because the title of the ad «FNIRSI 2C23T 2C53T upgrade 50MHz …» suggests that it is an upgraded device with the performance of the 2C53T, but apparently this is not the case, it is well limited to 10MHz. The title is misleading.
⭐ 5.0/5 | AliExpress Shopper: Briefly tested it with a power source and was very impressed.
⭐ 5.0/5 | C***n: Brilliant bit of kit. Jack of all trades as opposed to master of one but if you keep your expectations adjusted to the price it’s actually brilliant.
⭐ 5.0/5 | C***o: Good article, still need to do tests.
⭐ 5.0/5 | l***o: Good packaging, quality is visible, now it’s time to test.
⭐ 5.0/5 | S***O: Very practical and comfortable to transport.
⭐ 5.0/5 | AliExpress Shopper: Good instrument, I’ve tested it a bit and so far it’s good, the only problem is that the box it came in was a bit damaged.
⭐ 5.0/5 | P***o: Good product.
⭐ 4.0/5 | AliExpress Shopper: Good product.
⭐ 5.0/5 | a***r: Good product.
⭐ 5.0/5 | AliExpress Shopper: Good product, arrived as requested, good arrival time, very good product, very useful, I recommend it.
⭐ 4.0/5 | D***n: Good product, I would have liked the temperature to have better resolution with decimals.
⭐ 5.0/5 | M***r: Good quality and good shipping.
⭐ 5.0/5 | AliExpress Shopper: Good purchase.
⭐ 5.0/5 | J***E: Good value for money. Highly recommended.
⭐ 5.0/5 | A***a: Good item arrived on time and good quality, very good, thank you (could also be in Spanish).
⭐ 5.0/5 | Y***z: Good purchase.. very useful and precise for electronic work.. I recommend it.
⭐ 5.0/5 | J***a: Good evening, it arrived very well and quickly, I’m checking it and it’s 100%, I’ve noticed that the battery drains very quickly, so check that.
⭐ 5.0/5 | AliExpress Shopper: Good so far.
⭐ 1.0/5 | D***i: Bug too often when put on automatic and this time completely blocked. No button reacts anymore. The screen remains frozen. I hope that by completely discharging it, it will restart. I will sleep and see tomorrow. I am very disappointed.
⭐ 4.0/5 | s***s: Good multifunction instrument.
⭐ 5.0/5 | m***r: It was well packaged, delivery was fast, less than 10 days; and this product is a real dream.
⭐ 5.0/5 | U***r: Came packaged well and looks great.
⭐ 5.0/5 | M***u: Cute, too bad about the long wait.
⭐ 5.0/5 | AliExpress Shopper: Arrived correctly. I haven’t used it to test. It has all the items from the ad, the manual has Portuguese. It took 2 days longer than expected.
⭐ 5.0/5 | C***a: Arrived perfectly, the tool is beyond words like all from fnirsi. It’s my 4th fnirsi device, and it follows the same very high quality standard. I recommend it.
⭐ 5.0/5 | B***r: Arrived fast, the product works perfectly, I recommend the purchase to all, excellent quality products.
⭐ 5.0/5 | A***a: Everything arrived correctly.
⭐ 5.0/5 | v***e: Everything arrived correctly here at home. Thank you very much. I will test it and send more comments. I think the fnirsi brand is good and cheap.
⭐ 5.0/5 | R***a: Everything arrived correctly, well packaged, 10/10 😀.
⭐ 5.0/5 | AliExpress Shopper: Everything arrived correctly. I bought it on September 7th. It arrived on September 20th in Fortaleza.
⭐ 5.0/5 | c***l: Carefully packaged, item arrived on time despite the Christmas holidays, excellent value for money!!!
⭐ 3.0/5 | AliExpress Shopper: Conforms.
⭐ 4.0/5 | D***P: Satisfied with the acquisition of the product, excellent. Now I can perform better service when diagnosing a vehicle. Greetings friend.
⭐ 5.0/5 | c***c: Complies with the characteristics.
⭐ 5.0/5 | AliExpress Shopper: Meets expectations.
⭐ 5.0/5 | AliExpress Shopper: Complies with what is shown, perfect and the case is very cool.
⭐ 5.0/5 | w***r: The oscilloscope is perfect for the price.
⭐ 5.0/5 | R***a: Excellent quality materials and presentation. Highly recommended. Thank you very much.
⭐ 5.0/5 | W***a: Very good quality.
⭐ 5.0/5 | A***i: Delivery on time, received as marketed, good quality, user friendly.
⭐ 4.0/5 | AliExpress Shopper: It took a while but it arrived! I will test it and then I will make a worthy and well-deserved evaluation.
⭐ 4.0/5 | AliExpress Shopper: Device FNIRSI C53T is in good shape, similar to an average sized multimeter in dimension. Good enough for a hobbyist or an undergrad student for learning and exploring electronics. When signal frequency is very low 1Hz to 10Hz the oscilloscope shows some lagging and error reading but frequency above 10Hz displays good results, with good stability from 30Hz and above. Another issue I noticed on the programming signal data. there is a difference between amplitude (Vmax) and Vpp on the sig gen and the oscilloscope. they made an error on that too. Amplitude is not equal to Vpp. Amplitude= 1/2 Vpp. they can improve on that on the next software.
⭐ 5.0/5 | a***r: Did not try it yet, but so far looks very good.
⭐ 5.0/5 | T***i: Well made. Precise, reliable measurements.
⭐ 4.0/5 | M***d: Does what it promises. Excellent build quality.
⭐ 5.0/5 | f***r: It is a very good product, easy to use, even if not in Portuguese, it is in English, but it is easy to configure, this 50 MHZ model 2C53T, came much better than the 2 MHZ model (2C23T). Thank you very much to the Fnirsi brand!
⭐ 5.0/5 | AliExpress Shopper: Easy to use, love this brand, has a lot of functions in one device.
⭐ 5.0/5 | J***n: Easy to use, accurate, feels sturdy. Recommended!
⭐ 4.0/5 | a***r: Actually fully satisfied, super fast delivery, does what it should and the values are correct. But how am I to understand «Upgrade 50 MHz»??? that is misleading. Therefore one star less. The devices from F-Nirsi are great, I have already bought a few of them.
⭐ 5.0/5 | k***z: Effective delivery even before the date. Delivery reaches the location point. Contento with the delivery.
⭐ 5.0/5 | L***s: The shipment was super fast. The equipment arrives with the described tools… it turns on and works. Its functionality has not yet been tested as it is a gift… I hope to comment on its use in due course.
⭐ 2.0/5 | AliExpress Shopper: The equipment is good and the brand, but unfortunately the model I ordered is 10mhz, in their publication they say that an update of the Fnirsi 2C23T and 2C53T of 50mhz bandwidth was made, you have to check well before buying and please seller correct your publication.
⭐ 5.0/5 | A***A: The equipment is light, its carrying case is made of good material, the language is Chinese and English, it leaves a good impression, pending testing!
⭐ 5.0/5 | AliExpress Shopper: The equipment arrived on time. The equipment is complete, the equipment works very well. I am satisfied with the seller.
⭐ 5.0/5 | I***a: The FNIRSI 2C23T/2C53T is a very useful multifunctional handheld tool. Its ability to function as an oscilloscope, multimeter, and signal generator makes it convenient for various applications. While it does not offer the precision of high-end laboratory equipment, it is excellent for learning electronics, quick field tests, and educational purposes. Its portability and ease of use are important advantages. It is a good option for hobbyists and for those who need a versatile and portable tool.
⭐ 5.0/5 | AliExpress Shopper: The instrument is perfect, the shipment was very fast and there was no problem, the multimeter works super well, I recommend it.
⭐ 5.0/5 | e***r: The 2-channel 50Mhz oscilloscope meets my expectations. Thanks, fast delivery.
⭐ 5.0/5 | AliExpress Shopper: The package arrived exactly as described, well packaged.
⭐ 5.0/5 | E***n: The order arrived within the indicated time, very well with the packaging. It looks like a quality product, although I haven’t tested it yet.
⭐ 5.0/5 | AliExpress Shopper: The order arrived within the estimated time, and the packaging arrived in perfect condition, no bumps.
⭐ 5.0/5 | j***j: The product is good, second time I buy this model.
⭐ 4.0/5 | J***d: The product is excellent, the test probes are of poor quality.
⭐ 5.0/5 | l***r: The product is excellent, very complete, arrived with impeccable sealed packaging. Super recommended seller.
⭐ 2.0/5 | A***z: The product is true to the photos and works well, but the publication leads to misinterpreting the bandwidth of the equipment, it is understood that it is 50 Mhz, but in reality it is only 10 Mhz bandwidth, at least the 2C23T model is 10 Mhz. I suppose the one that is 50 Mhz is the 2C53T. That is, I bought the 2C23T thinking it was 50 Mhz bandwidth, but it is not. You have to be more specific in these technical characteristics in the publication.
⭐ 4.0/5 | j***i: The product is physically good, still need to test to see its operation, for now very good.
⭐ 5.0/5 | AliExpress Shopper: The product arrived earlier than I thought, it is an excellent product, a very good tool to work with, I 100% recommend the brand. Thank you very much, greetings from Colombia.
⭐ 4.0/5 | AliExpress Shopper: The product arrived well. No damage was observed in the box, the device worked well and could perform measurements and figures.
⭐ 5.0/5 | h***r: The product arrived well, excellent packaging, I will test it.
⭐ 5.0/5 | AliExpress Shopper: The product arrived within the established time, it looks of good quality, still need to test it.
⭐ 5.0/5 | M***s: The product arrived within the established time and without damage. Ok.
⭐ 5.0/5 | Á***G: The product arrived in perfect condition.
⭐ 5.0/5 | E***i: The product known is in perfect condition and with all technical specifications.
⭐ 5.0/5 | AliExpress Shopper: The product has arrived.
⭐ 5.0/5 | R***a: The seller is very responsible. My order arrived on time and very well protected. The best.
⭐ 5.0/5 | C***a: The seller is super attentive to solving problems, hence the rating. Super good for customers. And excellent service.
⭐ 5.0/5 | C***f: Very fast delivery and very well packaged. Product of excellent quality. Works perfectly. I recommend. Excellent seller.
⭐ 5.0/5 | C***z: Delivered before time.
⭐ 5.0/5 | A***a: Delivered on time and in form. Versatile item for a small workshop or laboratory but without asking for the precision offered by big brands as its price allows it.
⭐ 5.0/5 | M***n: Fast shipping, product as described. Pending tests, it looks robust and of good quality. Happy with the purchase. Recommend seller.
⭐ 5.0/5 | AliExpress Shopper: Fast shipping and delivery.
⭐ 5.0/5 | AliExpress Shopper: It’s a wonderful, super cool device, 100% recommended.
⭐ 5.0/5 | AliExpress Shopper: This model came with the 6020 Slim VCO probe connector stiff when connecting to CH1, CH2 of the Oscilloscope, but resolved with a small fine sandpaper in the rotating hole of the probe, and it became flexible when fitting!
⭐ 5.0/5 | A***a: This Oscilloscope and Multimeter is amazing, it worked perfectly, it’s precise, easy to use and I received it here in Brazil very quickly. I recommend it! ✅
⭐ 5.0/5 | AliExpress Shopper: It’s making some clicks in some functions like AC current, I don’t know if it’s normal for the multimeter, but overall, I liked it and will buy more products from the company.
⭐ 5.0/5 | AliExpress Shopper: It’s fine, I liked it.
⭐ 5.0/5 | AliExpress Shopper: This package arrived well and fast, I haven’t used it yet but I see that it doesn’t have a back button for the function. I have turned it on but haven’t tested it, later I will give a better opinion.
⭐ 5.0/5 | e***a: I’m starting in the electro-electronic area, this device makes it much easier, robust, precise, excellent! The only downside is the taxes!!
⭐ 5.0/5 | J***s: I am very satisfied! The device is great! Delivery was very fast! I recommend it!
⭐ 5.0/5 | D***o: I am very happy with the purchase, it looks like quality, the probes are very useful, I hope it lasts a long time.
⭐ 3.0/5 | AliExpress Shopper: I study engineering, and it’s good to have a versatile tool for some things, the only thing I would like them to improve is the multimeter section, it would be great if it had another option to measure inductors, and that it could measure the frequency of the AC voltage in multimeter mode as my Kaiweets KM601 does.
⭐ 5.0/5 | O***o: Great measuring instrument, ideal for both a professional and an electronics student, only missing Spanish language and ESR measurement in capacimeter mode.
⭐ 5.0/5 | A***s: Everything came as advertised. Thank you!
⭐ 5.0/5 | M***v: Everything is as described, fast delivery, perfect seller 100% recommend to buy from. Very nice product solid body nice buttons and display is very clear only when it’s working on multimeter it’s hard to see the button markings but it is manageable and with time you get used to it.
⭐ 4.0/5 | I***v: Everything perfect but problems with latest firmware availability on a global website. Latest firmwares available only on Chinese website (you can change language settings in your browser to avoid redirect to the global website).
⭐ 5.0/5 | C***e: Everything was very well packaged and in perfect condition. The package arrived sooner than expected.
⭐ 5.0/5 | D***s: Everything went smooth with purchase. Item as descripted. Really happy!
⭐ 5.0/5 | AliExpress Shopper: Everything worked out great, delivered super quickly, thank you.
⭐ 5.0/5 | w***t: Exactly, thank you….
⭐ 5.0/5 | L***l: Excellent equipment and works very well.
⭐ 4.0/5 | I***o: Excellent.
⭐ 5.0/5 | M***a: Excellent 10/10, only it took exactly 30 days, but I think it’s the Aliexpress system that has a tracking error, for the rest, satisfied.
⭐ 5.0/5 | O***z: Excellent 100% Recommended!!
⭐ 5.0/5 | A***o: Excellent item, very good quality and exceeded what I expected.
⭐ 5.0/5 | l***z: Excellent quality, comes with a carrying bag.
⭐ 5.0/5 | S***s: Excellent quality materials. Works perfectly. The only problem is its autonomy. The battery doesn’t last long. Requires a higher capacity battery. Otherwise, it is a high-precision instrument. Very satisfied.
⭐ 5.0/5 | AliExpress Shopper: Excellent quality and excellent seller, too bad about the logistics that does not inform where it leaves the order and does not give the new local tracking guide for the destination. I recommend this instrument, it is excellent and comes in good condition, excellent work by the seller, it is recommended, it is complete as described.

Pinout and Interface Map

PRODUCT PARAMETER Reviews FNIRSI 2C23T 2C53T

FNIRSI GC-03

Comparison table

Technical Specifications & Comparison FNIRSI 2C23T 2C53T

Feature	FNIRSI 2C23T	FNIRSI 2C53T
Display	2.8-inch HD color screen (320×240 pixels)
Architecture	FPGA+MCU/ARM+ADC with ±400V peak high-voltage protection
Oscilloscope Channels	Dual-channel
Sample Rate	50MS/s	250MS/s
Analog Bandwidth	10MHz (independent dual-channel)	50MHz (independent dual-channel)
Storage Depth	32KB	1Kpts
Input Impedance	1MΩ
Time Base Range	50ns – 10s	10ns – 20s
Vertical Sensitivity	20mV/div – 10V/div (X1)	10mV/div – 10V/div (X1)
Display Mode	Y-T / Scroll	Y-T / Rolling / X-Y
Persistence	Information not available	OFF, 500ms, 1s, ∞
Math Functions	Information not available	8 basic operations + FFT
Multimeter Display Count	4-digit 10000-count true RMS	4.5-digit 19999-count true RMS
DC Voltage Range	9.999V – 999.9V	1.9999V / 19.999V / 199.99V / 1000V
AC Voltage Range	9.999V – 750.0V	1.9999V / 19.999V / 199.99V / 750.0V
DC Current Range	9999μA – 9.999A	19.999mA / 199.99mA / 1.9999A / 9.999A
AC Current Range	9999μA – 9.999A	19.999mA / 199.99mA / 1.9999A / 9.999A
Resistance Range	999.9Ω – 99.99MΩ	199.99Ω / 1.9999KΩ / 19.999KΩ / 199.99KΩ / 1.9999MΩ / 19.999MΩ
Capacitance Range	9.999nF – 99.99mF	9.999nF / 99.99nF / 999.9nF / 9.999uF / 99.99uF / 999.9uF / 9.999mF / 99.99mF
Temperature Range	–55°C to 1300°C (–67°F to 2372°F)
Diode Test	Supported
Continuity Test	Supported
Live Line Detection	Supported
Signal Generator Waveforms	7 types (Sine, Square, Triangle, Full Wave, Half Wave, Noise, DC)	13 types (Sine, Square, Sawtooth, Half Wave, Full Wave, Positive Step, Negative Step, Exponential Rise, Exponential Fall, DC, Multi-audio, Sinker Pulse, Lorentz)
Signal Generator Output Frequency	1Hz – 2MHz	0 – 50kHz
Signal Generator Output Amplitude	0.1 – 3.3V	0 – 3V
Signal Generator Output Duty Cycle	Information not available	0 – 100%
Battery Capacity	3000mAh Lithium
Charging Port	USB Type-C (5V/1A)
Languages	Chinese, English, Portuguese, Japanese, German	Chinese, English
Storage Handbag	Not included in Standard/Optional versions	Included in Standard/Optional versions

Final summary

Final Verdict: FNIRSI 2C23T 2C53T

The FNIRSI 2C23T and 2C53T series offers an outstanding value proposition for anyone in need of a versatile, portable electronic testing solution. While the 2C23T provides a solid entry-level experience with its 10MHz bandwidth, the 2C53T truly shines with its 50MHz bandwidth and enhanced multimeter capabilities, making it an ideal choice for more demanding professional and advanced hobbyist applications, including automotive diagnostics. Despite some minor concerns regarding battery life and potentially misleading product descriptions for the 2C23T’s bandwidth, the overall build quality, comprehensive 3-in-1 functionality, and robust high-voltage protection make these devices highly recommendable. For those seeking a compact, all-in-one tool that delivers reliable performance for a reasonable price, the FNIRSI 2C53T, in particular, stands out as an excellent investment, with its superior sampling rate and waveform generation capabilities being the primary advantages that outweigh any minor drawbacks. For more in-depth analyses, visit andibond.com.