HR202 Humidity Detection Sensor Module

The HR202 Humidity Detection Sensor Module features a high-quality HR202 sensor that provides reliable humidity readings. Its comparator output signal is clean, with a strong waveform and a driving capability exceeding 15mA. This module is highly sensitive to environmental humidity and is often used to monitor ambient conditions.

Users can easily set a specific humidity threshold by adjusting the built-in potentiometer. For example, if the target humidity level is 60%, the module can be configured to activate a green light when that level is achieved. Conversely, if the ambient humidity falls below the set threshold, the module outputs a high signal, and the green light will not illuminate.

The digital output (DO) can be directly connected to a microcontroller, facilitating the detection of humidity changes. Additionally, the DO output can drive a relay module, allowing for the creation of a humidity switch that effectively controls related equipment.

For more precise readings, the analog output (AO) can be linked to an AD converter, providing accurate numerical values for ambient humidity. The module also includes 3mm screw holes for easy installation and secure mounting in various environments.

Features:

• Adjustable Sensitivity, External GND.
• Detect Ambient Humidity.
• Provided with Fixed Bolt Hole, Convenient to Install.
• Power Indicator Light & Digital Output Indication Lamp.
• Using LM393 Chip for Stable Work.
• DO Small Digital Outputs Interface (0 & 1).
• Adjustable trigger level from preset.
• LEDs indicating output and power.

Package Includes:

• 1 x HR202 Humidity Detection Sensor Module