A
Anonymous
Apr 08, 2026
Rating: 5/5
Bulk order success
Bought 10 units for a workshop. All arrived functional and consistent.
Description
Humidity Sensor Module Humidity Detection Switch Specializing in Components for 22 Years
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Model | HR202 |
| Operating Voltage | 3.3V to 5V DC |
| Output Type | Digital Switch Output (DO) |
| Humidity Range | 20% to 90% RH |
| Response Time | Approx. 5 Seconds |
| Operating Temp | -10°C to 50°C |
| PCB Dimensions | 32mm x 14mm x 8mm |
| Net Weight | 3 grams |
| Interface | 3-Pin Header |
| Compatibility | Arduino, Raspberry Pi, STM32 |
5 reviews
A
Anonymous
Feb 21, 2026
Rating: 3/5
Okay but basic
It works but don't expect high precision. Good for simple on/off triggers.
A
Anonymous
Feb 15, 2026
Rating: 5/5
Great for automation
Used this for a bathroom fan controller. Works perfectly with my ESP8266.
A
Anonymous
Feb 07, 2026
Rating: 5/5
Perfect for thesis
Reliable data for my environmental monitoring project. Easy to code.
A
Anonymous
Feb 01, 2026
Rating: 4/5
Good value
Sensitive enough for general use. Had to tweak the potentiometer slightly.
5 FAQ
Q: Is the sensitivity adjustable?
A: Yes, there is a blue potentiometer on the board to adjust sensitivity.
Q: Does this module support analog output?
A: No, this specific module provides a digital switch output only.
Q: What is the current consumption?
A: The module consumes approximately 15mA during active operation.
Q: What library should I use for Arduino?
A: Standard digital read functions work. No specific library is required.
Q: Can I use this outdoors?
A: It is not waterproof. Please house it in a protective enclosure if used outside.
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