Sequoia 1-Wire Temperature

1-Wire Temperature sensor with RJ11/12 Interface

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Key Features
  • Cabled Digital Temperature sensor
  • Uses standard 1-Wire communication bus
  • Used with industry standard monitoring products
  • Available with many cable lebgths
  • Available in many sensor housing types
  • Accurate and reliable
  • RJ11 connector

The Sequoia 1-Wire Temperature sensors are designed using the digital Dallas DS18B20 digital sensor and are available with cable lengths of 1m,3m,5m and 10m with RJ11/RJ12 connector as standard.

Designed and manufactured to high standard, these sensors have proven quality and are widely used in temperature monitoring applications. They can interface with any temperature monitoring device that uses 1-Wire as their sensor input.

Using the widely adopted 1-Wire bus and encoded with unique serial numbers, multiple sensors can be used within the same monitoring system and infrastructure, as they all are encoded with their own unique serial number.

These sensors are used in monitoring temperature in a number of day to day industrial situations, including server rooms, warehouses, fridges, freezers, liquid and many more.

Available in many formats and sensor housings

Our 1-Wire temperature sensors are available in many forms to suit most applications, these include the standard parts suitable for indoor use, sensors with flat cables that are suitable for fridge and freezer monitoring and our IP67 rated sensors with water proof housing for measuring temperatures in liquids and outdoors.

The PCB used in our standard sensor, also includes a "hole" allowing the sensor to be placed in computer racks.

If you require these sensors in any other specification, including in PCB form, different cable lengths or sensor housing, we will accommodate your requirements, although minimum order quantities with certain requirements will apply.


These sensors consist of a Dallas DS18B20 digital temperature placed on a PCB with the required industry standard 1 Wire interface and are connected to RJ11 connector.

The connection diagram can be found in the datasheet in the download section.


  • Sensor temperature range: -30°C to +125°C
  • Sensor resolution: 0.01 °C
  • Measuring accuracy: +/- 0.5 °C in range from -10°C to +85°C +/- 2 °C in range from -55°C to +125°C
  • Sensor: Dallas DS18B20
  • Communication bus:1-Wire bus – DS18B20
  • Communication Line:1-Wire (Data, GND, +5V)
  • Other specification: Pull-up resistor 10 k, power supply capacity: 100nF
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