{"title":"Gravity: Arduino EC (Electrical Conductivity) Sensor / Meter","handle":"gravity-arduino-ec-electrical-conductivity-sensor-meter","url":"/products/gravity-arduino-ec-electrical-conductivity-sensor-meter","description":"The Gravity EC (Electrical Conductivity) Sensor measures the conductivity of aqueous solutions, providing an analogue output for Arduino and compatible microcontrollers. EC measurement is essential for monitoring water quality, nutrient levels in hydroponic systems, and soil salinity in agricultural applications.\n\nThe kit includes a conductivity electrode (K=1), a waterproof DS18B20 temperature sensor for temperature compensation, and calibration standard solutions. The Gravity 3-pin interface allows plug-and-play connection without soldering.\n\nKey Features\n\n\nAnalogue EC Measurement – 1–20 mS/cm range for water quality monitoring\n\nGravity Interface – 3-pin PH2.0 connector for plug-and-play Arduino connection\n\nTemperature Compensation – Included waterproof DS18B20 sensor for accurate readings\n\nBNC Electrode – Conductivity probe with K=1 constant and ~60 cm cable\n\nCalibration Solutions Included – 1413 µS/cm and 12.88 mS/cm standards\n\n\nSpecifications\n\n\nOperating Voltage – 5.00 V\n\nMeasuring Range – 1–20 mS/cm\n\nAccuracy – <±10% F.S. (using Arduino 10-bit ADC)\n\nOperating Temperature – 5–40 °C\n\nElectrode Constant – K=1 (BNC connector)\n\nElectrode Cable Length – ~60 cm\n\nPCB Size – 45 × 32 mm\n\n\nPackage Contents\n\n1× Conductivity electrode (BNC connector)\n1× EC meter circuit board\n1× Analogue cable\n1× DS18B20 temperature sensor (waterproof)\n1× Terminal sensor adapter\n1× Digital cable\n1× Conductivity standard solution (1413 µS/cm and 12.88 mS/cm)\n\n\nIdeal For\n\nHydroponic and aquaponic nutrient monitoring\nAquaculture water quality testing\nIrrigation and soil salinity assessment\nGeneral water quality monitoring\n\n\nResources\n\nDFRobot Wiki – Documentation & Calibration Guide\nSchematic (PDF)\nElectrode User Manual (PDF)\npH & EC Probe Holder – 3D Printable Model\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11642,"title":"Default Title","sku":"DF-DFR0300","price":124.38,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":240,"option1":"Default Title"}]}