2PCS Digital DS18B20 Temperature Module Detection Sensor Module Board for Arduino DC 5V 18B20 Digital Signal Output Features: 100% brand new and high quality Small size, high efficiency Resolution adjusting range: with installing hole,easy to install,hole diamere:2.5mm Temperature Range:-55~+125Deg.C Temperature measurement precision:0.5Deg.C working voltage:DC 5V digital signal output Specifications: size:approx. 2.8*1.3cm main chip:18B20 temperature sensor working voltage:DC 5V Package Includes: 2 x module