Delay Timer Relay Self locking Delay On Off Time Switch Super 555 Timer DC

Delay Timer Relay Self locking Delay On Off Time Switch Super 555 Timer DC.TRM01 Delay Relay Module adopts high quality components and has stable performance and simple operation. It could be widely used in a variety of control situations that require delay self locking. The module is preset with 4 functions to meet a variety of application needs, and can customize and add other specific functions as user needs. Features: 1. With delay ON, delay OFF, self locking and trigger delay function.