ITEM NAME:1x Temperature Thermistor Sensors Waterproof Temperature Control DS18b20 HOT SALE body .shopclass { float: left; width: 100%;.Here is a DS18B20 original chip,three wire temperature sensor. Storage temperature range: -55 °C to - 125 °C (-67 °F - +257 °F). You can follow below process to chontact us. Cable length:Approx.100 cm. 9 12 adjustable resolution.