Specification:1: Working voltage: 6-30V support micro USB 5.0V power supply2: Trigger signal source: high-level trigger (3.0V-24V) The signal ground and the system ground are not in the same ground to improve the anti-interference ability of the system (you can also short-circuit the common ground by yourself)3: Output capacity: can control equipment within DC 30v 5A or AC 220v5A4: Quiescent current: 20mA Working current: 50mA5: Service life: more than 100,000 times; working temperature: -40—85°C; size: approx. 6.2x3.8x1.7cm6: Timing Range: 0.1 seconds (min.) ~ 999 minutes (max.) continuously adjustable7: With optocoupler isolation, enhanced anti-interference ability, industrial grade circuit board, set parameters forever after power offRelay “STOP” Button Using Mode:1. ON: Relay is allowed to conduct within OP time (on-time).2. OFF: Relay is banned conducting and it is always at closing status.Short pressing “STOP” button in the main interface, you will realize the shift between “ON” and “OFF”. It will flash and return to the main interface. (This is acute stop function, one-button turn on and off the relay)Sleep Mode:1. C-P sleeping mode: When not using the relay for 5 minutes, the digital tube will turn off the display automatically, and the program will keep working.2. O-d normal mode: Display of digital tube always on. Long press “STOP” button for 2 seconds and release to shift the status of C-P and O-d. It will flash and return to the main interface.Package List:3 x DC 6-30V Timer Relay Module with LED display