1. Versatile Control Solution: The HCW-03 12V Relay Module offers unparalleled versatility for electronics projects. With its infinite loop delay circuit and multi-functionality, it can be used for a wide range of applications, from home automation to industrial control systems.

2. Easy to Use: This relay module is designed to be user-friendly, with simple wiring and easy-to-understand instructions. Whether you"re a seasoned electronics enthusiast or a beginner, you"ll find it easy to integrate this module into your projects.

3. High-Quality Components: The HCW-03 is built to last, with high-quality components that are designed to withstand the rigors of continuous use. The relay itself is rated for up to 10A, making it suitable for a wide range of applications.

4. Reliable Performance: With its advanced delay circuit and precise timing capabilities, the HCW-03 offers reliable performance that you can count on. Whether you"re controlling lights, motors, or other devices, you can trust this module to deliver consistent results.

Package Include:

1 x Module Board

How to use:

Adjust the time counterclockwise to decrease, and adjust it clockwise to increase. The resistance range is about 0~5KΩ. When T1 is adjusted to 0Ω, the relay does not work.Formula: T1, T2 time (seconds or minutes) = voltage value (MV) /32.8095For example: the measured voltage value is 273MV. If the working time unit is seconds, the timer time is about: 237/32.8=7.2 seconds;If the working time unit is minutes, the timer time is about: 237/38.8=7.2 minutesFor example: the measured voltage value is 1.37V. If the working time unit is seconds, the timer time is about: 1370/32.8=41.8 seconds;If the working time unit is minutes, the timer time is about: 1370/32. 8=41.8 minutes