{"title":"Gravity: Analog Waterproof Capacitive Soil Moisture Sensor","handle":"gravity-analog-waterproof-capacitive-soil-moisture-sensor","url":"/products/gravity-analog-waterproof-capacitive-soil-moisture-sensor","description":"The Gravity Analogue Waterproof Capacitive Soil Moisture Sensor from DFRobot measures soil moisture using capacitive sensing rather than resistive probes, offering significantly better corrosion resistance and longer lifespan. The sensor is fully waterproof and can operate even when completely submerged.\n\nA built-in voltage regulator supports a wide 3.3–5.5 V input range, making it compatible with Arduino, micro:bit, ESP32, STM32, and other 3.3 V or 5 V development boards. For single-board computers like the Raspberry Pi, an external ADC is required to read the analogue output.\n\nKey Features\n\n\nWaterproof Design – Fully sealed construction with laminate coating for long-term use in soil or water\n\nCapacitive Sensing – No exposed metal electrodes, greatly reducing corrosion compared to resistive sensors\n\nWide Voltage Input – 3.3–5.5 V DC with onboard regulator, compatible with most microcontrollers\n\nAnalogue Output – 0–3 V DC output proportional to soil moisture level\n\nGravity Interface – Standard 3-pin 2.54 mm connector for easy wiring\n\nExtended Probe – 175 mm sensing length with 1.5 m cable\n\n\nSpecifications\n\n\nSupply Voltage – 3.3–5.5 V DC\n\nOutput Voltage – 0–3 V DC\n\nInterface – 3-pin 2.54 mm (Gravity compatible)\n\nCable Length – 1.5 m\n\nProbe Dimensions – 175 × 30 mm\n\n\nIdeal For\n\nGarden and greenhouse monitoring systems\nAutomated plant watering projects\nAgricultural and environmental data logging\nIoT soil condition monitoring\n\n\nResources\n\nProduct Wiki\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3987,"title":"Default Title","sku":"DF-SEN0308","price":24.14,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":28,"option1":"Default Title"}]}