The 8 Road/Channel Relay Module (with light coupling) 12V operates using optical coupling isolation to ensure reliable and stable triggering. It features high-end SMT process and double FR-4 circuit board design. The module is designed with power and relay operation instructions, and the relays terminals (C, NC, NO) are easily accessible through screw terminals. The inputs are isolated to protect delicate control circuitry, and it can be controlled by various microcontrollers like Arduino, AVR, PIC, ARM, etc. The high-voltage relay eliminates the risk of relay heating up.
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