The module adopts high-quality power relay, high-power high-voltage triode, red and blue signal indicator, double-sided PCB board, comprehensive layout and stable performance, which can be widely used in power control occasions. It has two channels of input and output control, and each channel can be set with 20 functions to meet more application requirements. It has the function of anti reverse connection of power supply, so that the module will not be damaged due to wrong connection of power supply. Using high voltage power supply module, the system is more stable and reliable. At least 0.1 second timing function can be set, and the timing accuracy is 0.01 second. Add the automatic power on function, which can be set by users themselves. All the setting can be saved automatically, and the setting contents will not be lost when the power is off. Voltage: 5V Colour: red Material: PCB Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.