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The Haitronic Humidity HR0101 sensor detects the presence of water droplets and provides a digital DO output for rain detection or an analog AO output for measuring the amount of water using a microcontroller. Sensitivity is adjustable via a potentiometer, while the LM393 comparator supports a wide voltage range.
The board has mounting holes and a double-layer FR-04 sensor surface with nickel plating. The TTL digital output switches from high to low when water droplets land on the surface and returns to high when they are removed.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.