ITEM NAME:Water level sensor water droplet sensor of depth for Arduino, Red H4O9 Water level sensor water droplet sensor of depth for Arduino, Red H4O9 Product Name: water level sensor Sensor Type: Analog Operating current: less than 20 mA Operating temperature: 10 celsius degree - 30 celsius degree Area of detection: 40mm x 16mm Red color Material: chip Operating Voltage: DC3-5 V Production process: FR4 double face HASL Moisture: 10% -90% non-condensing Product dimensions: approx. 62mm x 20mm x 8mm (l *w * h) Weight: approx. 3.5 G Package Contents: 1 x Water level sensor Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.