HR202 Humidity Detection Sensor Module

The HR202 Humidity Detection Sensor Module is suitable for various applications such as storage compartments, indoor air quality control, building automation, medical and industrial control systems, as well as research fields. Here are some key features, specifications, and usage notes:

  Features:  

• Adjustable Sensitivity, with External GND
• Detects Ambient Humidity
• Easy Installation with Fixed Bolt Hole
• Power Indicator Light & Digital Output Indication Lamp
• Uses LM393 Chip for Stable Work
• Digital Output (0V or 5V)
• Adjustable trigger level from preset
• LEDs indicating output and power

  Specifications:  

• IC Chip: HL-01
• Operating Voltage: 3.3 ~ 5V DC
• Operating Current: 15mA
• Humidity Range: 20 ~ 95%RH
• Output Digital: 0V or 5V
• Length: 50mm
• Width: 14mm
• Height: 7mm
• Weight: 6g

  Pin Interface Description:  

• VCC: External 3.3V-5V
• GND: External GND
• DO: Small digital outputs interface (0 and 1)

  Package Includes:  

• 1 x HR 202 Humidity Detection Sensor Module

  Usage Notes:  

• The humidity resistance module is most sensitive to environmental humidity, typically used to detect ambient humidity.
• When the module detects humidity below the threshold, the output port DO is at a high level. When the humidity exceeds the set threshold, the module's D0 output goes to a low level.
• The small digital output D0 can be connected directly to a microcontroller to detect the humidity level and control related equipment in the right environment.

The HR202 Humidity Detection Sensor Module provides a convenient way to detect ambient humidity and control equipment based on humidity levels in various applications.