GM328A Transistor Tester Diode Capacitance ESR Voltage Frequency Meter PWM Square Waving Signal Generator Soldering

Specification Input voltage DC5VOperating voltage about 30mATransistor tester controlThe tester is controlled by a rotary encoder switch The rotary encoder switch can have a total of 6 operations short press long press left turn right turn press left turn press right turn Press once in the off state to turn on the power and start the test After a test is completed if no device is detected Long press the switch or rotate the switch left and right to enter the function menu After entering the function menu the left or right switch can select up and down the menu item To enter a function item press the switch once When you need to exit from a function hold down the switch Features 1 Digital liquid crystal display easy reading can display the measured data and graphics2 Rotary switch control easy to use button measurement3 Long press the test button to exit the frequency measurement function The frequency measurement range is from 1Hz to above 1MHz When the measured frequency is lower than 25KHz the cycle is displayed4 Square waving generator there are multiple levels of squarewaving frequency optional left or right rotation test button to switch different square waving frequency long press the test button to exit the squarewaving generator5 Pulse signal generator left or right rotation test button to adjust pulse duty cycle from 1 to 99 Long press the test button to exit the pulse generator6 Use 5V Type c power supply interface for power supply