Quick Overview:

• Time can be adjusted by potentiometers
• With Micro USB 5.0V power input, it is very convenient to use.
• 5V –30V ultra-wide supply voltage.
• External triggering and on-board buttons are two trigger modes.
• With relay suction indicator. 

Product Description :

        This module designed as  5V-30V Delay Relay Timer Module Trigger Delay Switch Micro USB Power Adjustable Relay Module. In this relay module, operates with two kinds of power supply interfaces between wide voltage range of  5–30V, arbitrary voltage, also  Micro USB and welding terminal. Thus makes it very convenient to use. Here the time can be adjusted via a potentiometer, meeting almost all requirements of the user.

Here soon after supplying power to the module, the output state of the module remains in normally on (NO) and the common end (COM) disconnected. While the normally closed (NC) and the common end (COM) conduction. When a low pulse given to the TRIG pin,  the relay sucks and starts operating. Or in the case when trigger button touched, and the indicator light turns on. Under this condition, the state of the output of the relay is normally on (NO) and the common terminal.