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The Haitronic HR0040 soil moisture sensor measures soil moisture and can be used in an automatic irrigation system. When the soil does not contain enough water, the digital output gives a high signal; otherwise, it gives a low signal. The sensitivity can be adjusted using the blue digital potentiometer.
The sensor has digital and analog outputs, with the analog output providing greater accuracy. It uses the LM393 integrated circuit and features a red power indicator LED and a green digital output LED. The board has mounting holes for easy installation.
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.
