Full technical review FNIRSI 2C53P

By andibond | 26.01.2026

Product Introduction

The FNIRSI 2C53P emerges as a highly versatile and compact smart digital multimeter, oscilloscope, and signal generator, designed to address the multifaceted needs of electronics enthusiasts, students, and field technicians. This 3-in-1 device consolidates essential test and measurement functionalities into a single, portable unit, eliminating the need for multiple specialized instruments. Its unique selling proposition lies in its comprehensive feature set, including True RMS measurements, capacitance, NCV, and live wire testing, all presented on a vibrant IPS color screen. The 2C53P is ideally suited for a wide array of projects, from basic circuit debugging and component testing in hobbyist workshops to more advanced signal analysis and waveform generation in educational or professional settings, offering unparalleled convenience and efficiency in a compact form factor. Check out our other technical reviews for more hardware testing.

Hardware specifications

Core Specifications: FNIRSI 2C53P

• General:
• Screen Display: 4.3 Inch tempered glass+IPS color screen (480*272 pixels)
• Backlight: Adjustable brightness
• Power Supply: TYPE-C (5V/2A)
• Battery: 4000mAh lithium battery
• Language Support: Chinese, English, Russian, Japanese, Spanish, Portuguese, German, Korean
• Size and Weight: ≈145x98x35mm / 360g
• Certification: CE, RoHS, WEEE
• Origin: Mainland China
• DIY Supplies: Electrical
• Battery Included: Yes
• High-concerned chemical: None
• Oscilloscope Parameters:
• Channels: Dual channel
• Bandwidth: 50MHz
• Sampling Rate: 250MSa/s
• Storage Depth: Up to 64kByte
• Time Base Range: 10ns/div — 10s/div
• Vertical Sensitivity: 10mv/div — 10v/div
• Waveform Display Mode: YT, XY, Scroll
• Vertical Resolution: 8 bits
• Input Resistance: 1MΩ
• Bandwidth Limit: Support 20MHz limit
• Probe: 1x/10x
• Input Coupling: AC/DC
• Trigger Type: Rising / Falling edge
• Protection Voltage: ±400V
• Trigger Level: 8 div (positive/negative)
• Trigger Mode: Auto, Normal, Single
• Storage Space: 13M
• Measured Data: Prd, Freq, Vpp, Vmax, Vmin, Vrms, Vavg, Vamp, Du+, Du-, Wid+, Wid-
• Save Waveform Screenshot: Supported
• USB Computer Transfer: Supported
• Signal Generator Parameters:
• Wave Frequency: 0-10MHz (Sine wave: 10MHz / Other waveforms: 5MHz)
• Waveform Amplitude: 0.1V-3.0V
• Square Wave Duty Cycle: 0-100%
• Multimeter Parameters:
• DC Voltage: 1.9999V/19.999V/199.99V/1000.0V (Uncertainty: ±(0.5%+3))
• AC Voltage: 1.9999V/19.999V/199.99V/760.0V (Uncertainty: ±(1%+3))
• DC Current: 19.999mA/199.99mA/1.9999A/9.999A (Uncertainty: ±(1.2%+3))
• AC Current: 19.999mA/199.99mA/1.9999A/9.999A (Uncertainty: ±(1.5%+3))
• Resistance: 19.999MΩ/1.9999MΩ/199.99KΩ/19.999KΩ/1.9999KΩ/199.99Ω (Uncertainty: ±(0.5%+3) to ±(1.5%+3))
• Capacitance: 9.999nF to 99.99mF (Uncertainty: ±(2.0%+5) to ±(5.0%+20))
• Temperature: -55-1300°C / -67-2372°F (Uncertainty: ±(2.5%+5))
• Diode Test: Supported
• Continuity Test: Supported

Available Versions

Available Versions & Selection Guide

The FNIRSI 2C53P is available as a single, comprehensive model, offering a unified solution for multi-functional testing requirements.

Package Contents

What’s in the Box?

1. 2C53P Oscilloscope
2. Alligator clip probe
3. P6100*2 (Oscilloscope probes)
4. Product manual
5. Multimeter probe
6. Data cable

Features and benefits

Why I love FNIRSI 2C53P

• Vibrant and Durable Display: Equipped with a 4.3-inch tempered glass IPS color screen (480*272 pixels), the device provides crystal-clear visuals with wide viewing angles and enhanced durability. The adjustable backlight brightness ensures optimal visibility in diverse lighting conditions, from bright outdoor environments to dimly lit workshops, reducing eye strain and improving user experience.
• Exceptional Portability and Power: Powered by a 4000mAh lithium battery and charged via a modern TYPE-C (5V/2A) interface, the 2C53P offers extended operational periods and convenient recharging. Its compact size (≈145x98x35mm) and lightweight design (360g) make it an ideal companion for on-the-go diagnostics, field service, and educational purposes, easily fitting into a toolkit or backpack.
• Comprehensive Oscilloscope Capabilities: Featuring a dual-channel 50MHz bandwidth and a high sampling rate of 250MSa/s, this oscilloscope is capable of capturing a wide range of electronic signals with impressive detail. A generous storage depth of up to 64kByte allows for the analysis of longer signal durations, while the 10ns/div to 10s/div time base range and 10mv/div to 10v/div vertical sensitivity provide flexibility for both fast transients and slow-changing signals. Advanced trigger types (rising/falling edge) and modes (Auto, Normal, Single) ensure stable waveform acquisition, complemented by a ±400V protection voltage for enhanced safety.
• Versatile Signal Generation: The integrated signal generator offers a wave frequency range of 0-10MHz for sine waves and up to 5MHz for other waveforms, making it a valuable tool for testing circuits, calibrating sensors, and simulating various signal conditions. With an adjustable waveform amplitude from 0.1V to 3.0V and a square wave duty cycle from 0-100%, users can precisely tailor test signals to meet specific application requirements, enhancing diagnostic and development workflows.
• Precision Multimeter Functionality: The 2C53P integrates a full-featured 4000-count True RMS multimeter, providing accurate measurements across a broad spectrum of electrical parameters. It handles DC Voltage up to 1000.0V with ±(0.5%+3) uncertainty, AC Voltage up to 760.0V with ±(1%+3) uncertainty, and both DC/AC Current up to 9.999A. Furthermore, it offers extensive resistance measurements up to 19.999MΩ, capacitance measurements from 9.999nF to 99.99mF, and temperature readings from -55°C to 1300°C. Essential functions like diode and continuity tests further solidify its utility for comprehensive circuit analysis and troubleshooting.
• Enhanced Data Management and Usability: The device supports saving waveform screenshots and offers USB computer transfer, facilitating data logging, analysis, and reporting. Its multi-language interface, including Chinese, English, Russian, Japanese, Spanish, Portuguese, German, and Korean, ensures accessibility for a global user base, making complex measurements understandable and manageable for a diverse audience.

Pros and Cons

Strengths & Weaknesses:

What I Like
— Multi-functional 3-in-1 device (oscilloscope, signal generator, multimeter)
— High-quality 4.3-inch IPS color screen with tempered glass
— Dual-channel 50MHz oscilloscope with 250MSa/s sampling rate
— Wide range of multimeter measurements with True RMS and high accuracy
— Integrated signal generator with up to 10MHz sine wave output
— Portable design with 4000mAh battery and Type-C charging
— Multi-language support for global accessibility
— Ability to save waveform screenshots and transfer data via USB
— Comprehensive protection voltage of ±400V for oscilloscope input

Points to Consider
— While versatile, dedicated professional instruments might offer higher specifications for individual functions
— The 8-bit vertical resolution, while standard for portable devices, may limit precision in some advanced applications
— The 20MHz bandwidth limit option is useful, but the primary 50MHz bandwidth might be insufficient for very high-frequency analysis
— The user interface, though multi-language, might require a learning curve due to the device’s extensive features
— Information regarding firmware updates or advanced software features is not explicitly detailed in the provided data

User reviews

Reviews | Customer Feedback ⭐ 4.9 (16) | Sold (66)

Authentic Feedback Analysis:
⭐ 5.0/5 | K***ch: The product is 5 stars. Oscilloscope, signal generator, and multimeter. Three in one. Delivery to the pickup point. I bought it with a 1500 ruble discount. Very happy. The product arrived safe and sound. The kit includes 2 oscilloscope probes, multimeter leads, a USB cable, and leads for the generator output.
⭐ 5.0/5 | AliExpress Shopper: Excellent multimeter, I’ll find out how useful the oscilloscope is when I need it.
⭐ 5.0/5 | U***ch: Excellent device. Fully copes with its duties. The main thing is that the manufacturer listens to its customers and corrects errors by releasing new firmware.
⭐ 5.0/5 | K***ch: For such a price, the device is simply excellent, high accuracy. The main thing is multifunctionality. Thank you!
⭐ 5.0/5 | G***ch: The packaging is very good! Contents are in place!
⭐ 5.0/5 | M***ch: Everything works, foam packaging, delivery 20 days, FNIRSI SUPER! +5
⭐ 5.0/5 | T***ch: Ok.
⭐ 5.0/5 | T***ch: (No review text)
⭐ 5.0/5 | P***ch: (No review text)
⭐ 5.0/5 | N***y: (No review text)
⭐ 4.0/5 | AliExpress Shopper: Simple but good and useful!
⭐ 5.0/5 | V***s: (No review text)
⭐ 5.0/5 | P***E: (No review text)
⭐ 5.0/5 | S***ch: (No review text)
⭐ 5.0/5 | S***ch: (No review text)
⭐ 5.0/5 | AliExpress Shopper: (No review text)

Pinout and Interface Map

Pinout Configuration: FNIRSI 2C53P

Below is the detailed pin mapping for the dual-MCU architecture:

Comparison table

Technical Specifications & Comparison FNIRSI 2C53P

Information not available at the moment.

Final summary

Final Verdict: FNIRSI 2C53P

The FNIRSI 2C53P stands as an exceptional value proposition for anyone seeking a highly integrated and portable test and measurement solution. Its combination of a 50MHz dual-channel oscilloscope, a versatile signal generator, and a precise 4000-count True RMS multimeter makes it an indispensable tool for hobbyists, students, and professionals requiring on-the-go diagnostics. The vibrant IPS display, robust battery life, and multi-language support further enhance its appeal, making complex electronic tasks more accessible. While dedicated high-end instruments might offer superior specifications for individual functions, the 2C53P’s unparalleled multifunctionality and portability at its price point make it an ideal choice, with its comprehensive feature set being the main advantage that outweighs any minor limitations. For more in-depth analyses, visit andibond.com.