Teyleten Robot Capacitive Soil Moisture Sensor Module Corrosion Resistant Moisture Detection Garden Watering for Arduino DIY 3.3~5.5V 5pcs

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SKU:
ZY14627
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The sensor has a built-in voltage regulator chip that supports a 3.3~5.5V wide voltage operating environment, which means it can work even at 3.3V. Most modules only require an external ADC (analog to digital) converter module to work.