{{ :cs:hw:05-sensors:unipi-temp-1w.jpg?direct&140|}} * the most inexpensive variant of 1W temperature sensor * digital waterproof sensor featuring the **DS18B20** chip * metal probe dimensions: 6×30 mm * The temperature sensors are suitable for temperature measurements in the range of -10°C/+85°C. With reduced accuracy, the sensors can be used in a range from -55°C up to +125°C * Suitable for all Unipi 1W devices -> 4-wire connection * Easy connection to Unipi units using an RJ45 connector with a suitable [[https://www.unipi.technology/kabely-redukce-rozbocovace-c41|splitter]] * [[https://www.unipi.technology/1-wire-teplotni-senzor-p63|link to e-shop]] * More info and tips regarding sensor connection are available in [[en:automation:02-glossary:1wire-hidden|the 1-Wire article]] Examples of use: * measuring indoor or outdoor temperature for the purpose of heating regulation * measuring temperature of liquids stored in tanks (several sensors can be placed on various levels to improve the accuracy) * measuring temperature of liquids in pipes Applicable for: * All Unipi units with a 1W bus, including the Unipi 1.1/Lite * With Unipi 1W hub and splitter * Unipi Extension xG18 A direct connection to Unipi unit can be performed by cutting away the connector and connecting the sensor to the 1W terminal of Patron or Neuron units. Older Neuron units and the Unipi 1.1/Lite feature an RJ45 connector, allowing for a direct connection. For more info, please visit the [[en:automation:02-glossary:1wire-hidden#wire_bus_on_unipi_devices|1-Wire bus and sensor connection]].