Simple tester that allows you to measure the level of PWM signal and voltage. The tester features a pin strip for easy connection of two servo connectors. The signal pins are connected, allowing the tester to be easily placed between the receiver and servo. The PWM signal value in uS is displayed on a seven-segment display. By switching the switch on the side of the tester, you can change the mode and choose whether it measures the PWM signal or the input voltage.