2.2.8. Square Wave Output
Range:
Voltage: about 3,3V
Frequency: 50 Hz~5KHz
Input protection: 500Vrms
2.2.9. Diodes and Continuity Measurement
Value displayed: Forward voltage drop of diode
Testing condition: Forwrd DCA is approx. 1mA, the backward voltage is approx. 3V
Value displayed:Buzzer sounds, the resistance is less than (50 ± 20) Ω
Testing condition: Open voltage is approx. 3V
Overload protection: DC or AC250V peak value.
Warning: It’s forbidden to input voltage value in this range for the sake of safety!
2.2.10. Transistor measurement
Range: hFE NPN or PNP
Displaying: 0 ~ 1000
Test condition: Basic current is approx. 10uA, Vce is about 3V
