1、DR42A01 Multifunctional delay relay control module, designed for the customers with different needs, use micro-controller as the main control unit, preset 18 kinds of functions, and can customize and add other specific functions based on user needs. 2、The module adopts high-quality relay module, high-power high-voltage transistor, red signal lights, military grade double-sided PCB board to get stable performance, can be widely used in a variety of power control applications. 3、Users can choose one of the following 18 functions by keystrokes and display. They can set and save function parameters, and can also view the parameters of the current function. The time parameters can be adjusted by 0.1 seconds, and the precision is be 4、Function 1: Timing Pull-in: After power on, when arrived the setting time T1, the relay pull in and the T1 can be adjustable between 0.1 second and 270 hours, give CH1 interface a low pulse signal(low level duration≥20ms), repeat the above function for o 5、Function 2: Timing Disconnection: After power on the relay pull-in. When arrived the setting time T1,the relay disconnect, and the T1 can be adjustable between 0.1 second -270 hours. Send a low pulse signal( to IN1 interface, repeat the above function fo