Fnirsi DSO-152 Digital Oscilloscope

Fnirsi DSO-152 is a pocket single-channel digital oscilloscope suitable for basic signal analysis in the workshop, during repairs and in education. It has a sampling rate of 2,5MS/s and a bandwidth of 200kHz. It can handle slower periodic analogue and non-periodic digital signals, such as PWM signals for servos and ESCs or power supply voltage ripple. The bandwidth is not sufficient for fast digital protocols such as DShot. The waveform is displayed on a 2,8" display with a resolution of 320x240 pixels together with calculated values such as Vmax, Vmin, Vpp, Vrms, frequency and duty cycle.

For quick measurement, the AUTO button automatically sets the range and time base, so the waveform is displayed without manual adjustment. Pressing and holding AUTO calibrates the zero line. Triggering can be switched to automatic, normal or single-shot mode. Single-shot mode captures and holds even non-repeating events. The input has selectable AC or DC coupling. Vertical sensitivity is adjustable from 10mV-10V/div and the time base from 10µs-50s/div, both in 1-2-5 steps. The 1kHz square-wave calibration output with a 50 % duty cycle is used to check the operation of the oscilloscope and test lead.

It is powered by a built-in 1000mAh lithium battery, which provides approximately 4 hours of operation after a full charge. It charges via USB-C (5V/1A). The oscilloscope measures 99x68,3x19,5 mm and weighs 100g.