Description Adjustable TimeThe chronopotentiometry regulation time, default adjustable from 0 to 25 seconds, if you need more time, just replace a larger capacity or potentiometer. Easy to UseThe timer relay module is easy to use. Simply power up the module and the relay is immediately energized. If there is no power, connect the terminal to the COM terminal. Trigger DelayThis relay module is normally open, and its trigger signal can be level signal high or low, suitable for industrial control, and can be triggered repeatedly Wide UseThe timer module can be used in robotics, car lamp delay, intelligent product development, equipment automation, PLC development, smart home, burglar alarm delay and electronics development FeatureThe working voltage: 12 volts DC. The use of high-performance synchronization processor design. Single size: 52*16mm