Programmable-Resolution-1-Wire-Digital-Thermometer-Maxim-DS18B20Z-p-This-device-is-a-digital-thermometer-that-provides-9-bit-to-12-bit-Celcius-temperature-measurements-communicating-via-a-1-wire-bus-that-greatly-simplifies-communications-with-the-attendant-microprocessor-An-additional-feature-is-an-alarm-function-with-non-volatile-user-programmable-upper-&-lower-voltage-trigger-points-The-DS18B20-can-derive-power-directly-from-the-data-line-parasitic-power-eliminating-the-need-fo