1-way relay module 12V low level trigger relay expansion board

*Brand new and high quality.

*Made of high-quality materials, you can buy with confidence.

*Using double-sided FR-4 circuit board design and produced by high-end patch technology;

*When there is a low-level signal at the signal input terminal, the common terminal and the normally open terminal will be connected;

*Relays can directly control various equipment and loads;

The meaning of high level and low level:

High-level triggering refers to a triggering method that connects the positive voltage of the VCC terminal to the triggering terminal. When the triggering terminal has a positive voltage or reaches the triggering voltage, the relay will close.

Low-level triggering refers to a triggering method that connects the negative voltage of the GND terminal to the triggering terminal. When the triggering terminal has 0V voltage or the voltage is low enough to trigger, the relay will close.

Specification:

*Product name: Relay expansion board

*Material: ABS

*Color: as shown in the picture

*Size:43x17x18.5mm

*Specification: 12V

Package Contents:

5X relay expansion board

notes:

1. Due to factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the website image.