Our product design is unique, not only beautiful but also practical. Function: Turn on the output when there is a signal, and turn the output after the signal disappears. Power delay disconnect module, is special for delay of cooling fan, exhaust fan, etc. It is a timer module with high precision, stable and . QUALITY GUARANTEE: Best quality. Our Brand is dedicated to provide high standard products，we have confidence in our products and provide after sale support,if you have products quality issues, please contact us.