Fnirsi Portable 3-in-1 2C53P 4.3" touchscreen oscilloscope

FNIRSI 2C53P 4.3" portable 3-in-1 touchscreen oscilloscope.
The FNIRSI 2C53P is a portable oscilloscope that combines three functions: a two-channel oscilloscope, a digital multimeter, and a DDS generator. The device offers extensive functionality in a compact form. It features a 4.3-inch IPS touchscreen with 480 × 272 pixel resolution, which provides intuitive operation and free viewing of waveforms with zoom and pan capabilities. The oscilloscope offers a 50 MHz bandwidth, a 250 MSa/s sampling rate, and 12 switchable waveforms. This makes it ideal for measuring voltage, current, resistance, capacitance, or temperature with precision up to 19999 readings.


Advanced signal analysis capabilities
The FNIRSI 2C53P enables professional signal analysis with functions such as FFT (fast Fourier transform), X-Y mode, cursor measurements, mathematical functions, and True RMS function. The oscilloscope offers three trigger modes (auto, normal, single), and with the "auto set" function, waveform calibration is performed with a single button. In addition, a band-limiting function of up to 20 MHz is available, allowing accurate measurement of power supply interference at the millivolt level.


Multimeter with high precision and safety
The built-in multimeter supports measurements of AC/DC voltage, current, resistance, capacitance, diodes, continuity, and temperature. The device offers extremely accurate measurements (up to 19999 readings) and allows you to store up to five measurement parameters, track changes in minimum and maximum values, and export data to a computer via the "USB Sharing" function. The dual ceramic fuses used protect the device from current and voltage overloads, ensuring safe use.


Fast charging and robust design
The built-in lithium battery with a capacity of 4000 mAh ensures long operation of the device without frequent charging. The FNIRSI 2C53P is equipped with a tempered glass screen, an adjustable stand (90°), and a compact, impact-resistant housing, making it suitable not only in the workshop but also in the field. The entire device supports up to 8 interface languages, including Chinese, English, Russian, Japanese, Spanish, Portuguese, German, and Korean.


Ideal for precision measurement and analysis
The FNIRSI 2C53P oscilloscope is used for measuring 220V mains voltage, switching power supplies, power supply interference, and pulse signals, as well as for analyzing audio signals. It is a versatile tool that will be perfect for both professional laboratory and hobbyist applications.



Included
oscilloscope probe with crocodile clip
P6100 x2 probe
probe with multimeter function
data cable
user manual

 
General


Manufacturer: FNIRSI
Model: 2C53P
Dimensions: 14.5 x 3.5 x 9.8 cm
Screen: 4.3" tempered glass, color IPS screen
Screen resolution: 480 x 272 px
Backlight capability: Supported
Power source: type-C (5V/2A)
Battery: Lithium, 4000 mAh capacity
Supported languages: Chinese, English, Russian, Japanese, Spanish, Portuguese, German, Korean
Weight: 360 g

 
Oscilloscope


Channel: Dual
Sampling frequency: 250 MSa/s
Time base range: 10ns/div - 10s/div
Waveform display method: YT, XY, Scroll
Input impedance: 1MΩ
Probe: 1x/10x
Trigger type: Rising edge, falling edge
Trigger levels: 8 (positive, negative)
Memory: 13M
Save waveform screenshot: Supported
File transfer to computer via USB: Supported
Bandwidth: 50 MHz
Vertical sensitivity: 10mv/div - 10v/div
Vertical resolution: 8 bits
Bandwidth limit: 20 MHz
Input coupling: AC/DC
Voltage protection: 400 V
Trigger mode: Automatic, normal, single
Measurement data: Prd, Freq, Vpp, Vmax, Vmin, Vrms, Vavg, Vamp, Du+, Du-, Wid+, Wid-

 
Signal generator


Wave frequency: 0-10MHz (sine wave: 10MHz / other waveforms: 5MHz)
Waveform amplitude: 0.1V-3.0V
Rectangular waveform duty cycle: 0-100%