ITEM NAME:Rain Water Sensor Liquid Level Sensor Module Depth of Detection for Arduino Gn escription: Water Sensor water level sensor is an easy-to-use, cost-effective high water level / the water droplets identification detection sensor, which is obtained by a series of parallel wires exposed traces to measure the size of the water droplets / quantity in order to determine the water level. Easy to complete the amount of water to convert the analog signal, the output of the analog value can be read Arduino development board to achieve the effect of water level alarm. Specifications: Product Name: water level sensor Operating voltage: DC3-5V Operating Current: less than 20mA Sensor Type: Analog Detection area: 40mm x 16mm Production process: FR4 double-sided HASL Operating temperature: 10 Degree to - 30 Degree Humidity: 10% -90% non-condensing Product weight: 3.5g Size: 62mm x 20mm x 8mm / 0.44*0.79*0.31'' Guide link : Interface: S =Singal pin(connects to an analog pin on the arduino) +=Positive Voltage(connects to 5V terminal on ardino) -=Ground(connects to ground terminal on arduino).S =Singal pin(connects to an analog pin on the arduino). Detection area: 40mm x 16mm. Sensor Type: Analog. Guide link Size: 62mm x 20mm x 8mm / 0.44 0.79 0.31".