5V Humidity Sensitive Switch Relay Module

Automated Humidity Relay Switching: Directly triggers external high-power AC/DC loads when ambient humidity reaches a customizable threshold setpoint.

5V DC Low-Voltage Operation: Powered by a standard 5V DC supply, making it ideal for microcontrollers, breadboard power modules, and low-voltage automation setups.

Onboard Potentiometer Calibration: Equipped with an adjustable precision trimmer potentiometer to fine-tune trigger sensitivity and response thresholds easily.

High-Capacity Relay Output: Onboard mechanical relay handles switching loads up to 10A 250V AC or 10A 30V DC for humidifiers, exhaust fans, and warning indicators.

Dual LED Telemetry Status: Features onboard power and relay actuation LED indicators to provide instant visual feedback during operation.

Board Material: Heavy-duty FR-4 glass-epoxy PCB with high-capacity 5V relay module, blue screw terminals, and onboard status LEDs.

Technical Specifications:

Input Power: 5V DC.

Switching Capacity: 10A / 250V AC, 10A / 30V DC.

Sensing Component: High-sensitivity HR202 humidity sensor element.

Board Color: Blue PCB with Blue Relay & Screw Terminals.

Usage Advice: Turn off load power before making connections to screw terminal blocks; adjust the sensitivity potentiometer gradually until the relay triggers at your target humidity level.

Maintenance: Keep the humidity sensor surface free of dust, oils, and moisture buildup to maintain accurate switching response times.

Essential Standalone Humidity Automation Switch: Position as a standalone, microcontroller-free solution for controlling exhaust fans, humidifiers, and dehumidifiers in terrariums, greenhouses, or storage cabinets.

Highlight Plug-and-Play Relay Integration: Emphasize how the integrated relay allows users to switch AC/DC appliances directly without needing Arduino coding or external driver transistor circuits.

Recommended Cross-Sell Add-ons: Pair with DHT11 Temperature & Humidity Sensor Module, AM2302 (DHT22) Temp & Humidity Sensor, STC-3028 220AC Digital Temperature Humidity Controller, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Temperature Sensor Modules collection page as your simple 5V humidity-triggered relay switch module.