Multifunctional Infinite Cycle Timer Relay Module - Delay On/Off Timer Relay, AC100V-250V, 0.5sec. to 1000min

All you have to do is set it up and connect it up, and it works.

No instructions, no circuit diagram, no information on how to set up, no information on operational modes. Good quality

I used this as a universal defrost timer on all DEHUMIDIFIERS with a solenoid bypass valve also 5 minutes starting timer if machine gets disconnected and reconnected save damage to compressor

Did what it said. Reliable, can't ask for more.