... Measurement up to 250MS/s real time sample rate 3.7"TFT handheld digital storage oscilloscope(60MHz)Main Features: Autoscale function60MHz ... ,Preshoot,Risetime,Falltime,+Width,-Width,+Duty, -Duty, Delay A→B , Delay A→B Waveform math +,-,×,÷, Inverted Digital Multimeter Testing Voltage, Current, Resistance ...