DC 5V 12V 24V Adjustable Cycle Timer Delay On Off Switch Relay Module

DC 5V 12V 24V Adjustable Cycle Timer Delay On Off Switch Relay Module.Features: It is a timer relay module with high precision, stable and reliable performance . S u pport 2 modes, mon mode(once) and cycle mode, and you can simply switch mode by adjusting the jumper . Co nnect 2 wires of K ey if you need modu le to work recurrently after power on . T here are many voltage and tim e range f or your choice, b oth on time and off time are adjustable . W idely used on timer operating