{"title":"Simple Water Detection Sensor with Digital Output","handle":"simple-water-detection-sensor-with-digital-output","url":"/products/simple-water-detection-sensor-with-digital-output","description":"A simple, palm-sized water detection sensor that outputs a digital high signal when water or condensation is detected on its surface. The compact red PCB features interlocking traces connected to a lightly biased transistor — when water bridges two traces, the transistor switches on and the output pin goes high.\n\nWiring is straightforward: connect the minus (−) pin to ground, the plus (+) pin to 3–5 V DC, and read the signal (S) pin with your microcontroller. While the output voltage varies slightly with the amount of water present, the sensor works best as a simple on/off water detector.\n\nKey Features\n\n\nDigital Output – Signal pin goes high when water is detected\n\n3–5 V Compatible – Works with Arduino, Raspberry Pi, and other microcontrollers\n\nSimple 3-Pin Interface – Ground, power, and signal\n\nCompact PCB – Palm-sized with interlocking detection traces\n\n\nSpecifications\n\n\nOperating Voltage: 3–5 V DC\n\nOutput: Digital (active high)\n\nPins: − (GND), + (VCC), S (Signal)\n\n\nIdeal For\n\nLeak detection and flood alerts\nPlant watering and soil moisture projects\nCondensation monitoring\nRain detection\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2723,"title":"Default Title","sku":"AF-4965","price":3.8,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}