DC 5V/12V/24V Delay Timer Relay Self locking Delay On Off Time Switch Super 555 Timer _x000D_ TRM01 Delay Relay Module adopts high-quality components and has stable performance and simple . 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. _x000D_ Features: _x000D_ 1.With delay ON, delay OFF, self-locking and trigger delay function. _x000D_ 2.With power supply anti-reverse function to prevent damaging the module. _x000D_ 3.There are three working voltage versions of 5V/12V/24V for users to choose from. _x000D_ 4.The delay time can be arbitrarily set between 0.1 seconds and 120 seconds. _x000D_ 5.The parameters can be saved, and the setting contents are not lost when power off. _x000D_ _x000D_ _x000D_ _x000D_ Specification: _x000D_ Working voltage: DC 5V, 12V, 24V (Optional) _x000D_ Working current: _x000D_