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HR202 Humidity Detection Sensor Module



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


  1. can detect the humidity of the surrounding environment
  2. adjustable sensitivity (blue digital potentiometer adjustment)
  3. Operating voltage 3.3V-5V
  4. board PCB size: 3cm * 1.6cm
  5. power indicator (red) and digital switch output indicator (green)
  6. comparator with LM393 chip, which is stable
General Specification
IC ChipHL-01
Operating voltage (v)3.3 ~ 5V DC
Operating Current15mA
Humidity Range20 ~ 95%RH
Output Digital0V or 5V,
Length (mm)51
Width (mm)15
Height (mm)7
Weight (gm)5
Shipment Weight0.01 kg
Shipment Dimensions6 × 3 × 3 cm

Module interface specification (4-wire):

VCC external 3.3V-5V

GND external GND

DO small plate switch digital output interface (0 and 1)

AO board analog output interface

Package Includes:

1 x HR 202 Humidity Detection Sensor Module.


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