1 Channel PC817 Optocoupler Isolation Module, 12V Photoelectric Isolator Signal Board for Anti Interference - 4 Pcs

【Signal Purification】Effectively eliminates common-mode interference and ground loop noise in industrial environments, protecting sensitive circuits such as microcontrollers from high-voltage surge impacts. 【Low Coupling Capacitor】Using optocoupler chips, it effectively blocks high-frequency noise coupling. The onboard indicator light makes it easy to monitor the working status intuitively. 【Protection Barrier】When you frequently encounter sensor signal mis-triggering or single-chip microcontroller reset issues during system development, connecting this module can achieve signal conditioning. 【Meet Requirements】Compatible with most industrial sensors. It is recommended to configure one for each isolated signal channel. 【Reliable and Safe】When data is safely transmitted between modules with potential differences, these isolation boards are the silent guardians for the reliable operation of professional electronic systems.