XH-M131 5V Photo-resistor Relay Module

Automated Light-Threshold Switching: Integrates an external wire-lead photoresistor sensor with an onboard relay to switch high-power circuits based on ambient light levels.

Onboard Sensitivity Trimmer: Features a precision multi-turn potentiometer that lets you fine-tune the exact light threshold for activation and deactivation.

Heavy-Duty Load Switching Capacity: Outfitted with robust relay contacts capable of switching up to $250\text{V} / 10\text{A}$ AC or $30\text{V} / 10\text{A}$ DC electrical loads.

Integrated Optocoupler Protection: Built with optocoupler isolation to protect control lines and prevent voltage feedback from high-power loads.

Remote Sensing Lead Design: Comes with a detachable, long-wire LDR probe, allowing flexible light measurement inside tight spaces or outer enclosures.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with blue screw terminals, a sealed 5V relay module, and a wired photoresistor probe.

Technical Specifications:

Operating Voltage: 5.0V DC.

Relay Contact Rating: AC 250V/10A, DC 30V/10A.

Color: Blue Circuit Board with Blue Relay Enclosure and White Wire Lead.

Usage Advice: Connect a 5V DC supply to VCC and GND terminals; wire your device through the NO or NC relay terminals, and place the remote LDR probe where light levels need monitoring.

Maintenance: Ensure terminals are securely tightened; keep circuit components clean and free from moisture or metal debris.

Essential Standalone Light-Switching Module: Position as a complete plug-and-play solution for automated night lamps, outdoor courtyard lights, solar power management, and industrial light-sensing relays.

Highlight Detachable LDR Lead: Emphasize how the long wire-lead photoresistor provides positioning flexibility over fixed, board-mounted LDR sensors.

Recommended Cross-Sell Add-ons: Pair with 12V Photoelectric Resistor Relay Module, 5V Photoelectric Resistor Relay Module, 4Pin Photoresistor Light Detection Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Light Sensor Module collection page as your specialized XH-M131 photoresistor relay board.