RC Servo Tester ECS Consistency Speed Controler 2 switch 4CH Out for RC Helicopter Airplane Car Digital Steering Servo Multi Product name: Dual channel PWM signal simulator, servo tester Application scenarios: Servo testing and electrical tuning testing require a long period of time to provide PWM signals to brushless motors and other areas that require PWM signals. Product description: This product consists of a rotary switch and a dip switch, which simulates the joystick channel and dip switch channel of a model airplane remote control. Both channels are independent channels, with the mid-term dialing channel divided into high, medium, low, and gear positions. And there are three different colored lights to indicate, Working parameters: Working voltage: 5-8.4V High and low frequency travel: 1000-2000us Note that each channel of this device has two interfaces, which can simultaneously connect to four devices, This device can only be powered by one circuit. For example, when testing two circuit breakers, it is necessary to remove the UBEC of one of them, otherwise the signal is prone to interference. _x000D_