Timer Switch Module DC 6V 30V Trigger Delay On/Off Cycle Relay with Digit LED Display Micro USB 5V,

SAVING AUTOMATICALLY---All set parameters will be automatically saved if there is a power failure. With optical coupling isolation, improved anti-interference ability, industrial level circuit board REVERSE INPUT PROTECTION---The timer switch module supports reverse input protection, and there is a STOP button for emergency stop function, with clear interface, simple and powerful SLEEP MODE---The timer switch module is of sleep mode, it will automatically turn off display if no in 5 minutes after enabled, and you can press any button to wake it up 6V TO 30V---The timer switch module is of wide DC power supply voltage from 6V to 30V, support micro USB 5.0V power supply, very convenient to use OP CL LOP---You can set different OP, CL, LOP parameters, these parameters were independent of each other and saved respectively