Description: Name: Waterproof DS18B20 temperature sensor module. Application: Widely use for Single Chip Machine, especially for Arduino Controller. Ready-made library function for temperature testing. Connect to exclusive Arduino sensor expansion board through 3-pin sensor plug. Working Voltage: 5V Testable Temperature Range??55??125 ? Adjustable Resolution Range?9?12 bits Temperature Testing Accuracy: 0.5 ? Size?17x10 mm/0.66x0.39 inch Installing Hole Diameter?3 mm/0.11 inch Package Includes: 1 Piece Temperature Sensor Module