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 a wide range of functionality in a compact form. The device has a 4.3-inch IPS touch screen with a resolution of 480 × 272 pixels, which provides intuitive operation and free viewing of waveforms with zoom and pan. The oscilloscope offers 50 MHz bandwidth, 250 MSa/s sampling rate and 12 switchable waveforms. This makes it ideal for measuring voltage, current, resistance, capacitance or temperature with an accuracy of up to 19999 readings.
The FNIRSI 2C53P enables professional signal analysis with functions such as FFT (Fast Fourier Transform), X-Y mode, cursor measurements, math functions and True RMS function. The oscilloscope offers three triggering modes (automatic, normal, single), and with the "automatic adjustment" function, waveform calibration can be done with a single button press. In addition, a band-limiting function up to 20 MHz is available, allowing accurate measurement of power supply disturbances at the millivolt level.
The built-in multimeter supports measuring AC/DC voltage, current, resistance, capacitance, diodes, continuity and temperature. The device offers highly accurate measurements (up to 19999 readings) and allows you to store up to five measurement parameters, monitor changes in minimum and maximum values, and export data to a computer using the "USB Share" function. The double ceramic fuse used protects the device from current and voltage overload, thus ensuring safe use.
The built-in lithium battery with a capacity of 4000 mAh ensures the long operation of the device without frequent charging. The FNIRSI 2C53P has a screen made of tempered glass, an adjustable stand (90°), a compact and impact-resistant housing, so it can be used not only in the workshop, but also in the field. The whole device supports up to 8 interface languages, including Chinese, English, Russian, Japanese, Spanish, Portuguese, German and Korean.
The FNIRSI 2C53P oscilloscope can be used to measure 220V mains voltage, switching power supplies, mains interference, pulse signals, crystal waveforms, and analyze audio signals. It is a versatile device that will be perfect for both professional laboratory and hobbyist applications.

- Model 253P
- 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 Supported
- Power source Type-C (5V/2A)
- Battery Lithium, 4000 mAh capacity
- Supported languages Chinese, English, Russian, Japanese, Japanese, Spanish, Portuguese, German, Korean, German, Korean
- Weight 360 g

Oscilloscope

- Channel Two
- Sampling frequency 250 MSa/s
- Time base range 10ns/div 10s/div
- Waveform display method YT, XY, scrolling
- Input impedance 1ΜΩ
- 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 limitation 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
- Square waveform work break 0-100%