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1-Wire

1-Wire (abbreviated to 1W or OW), is a communication bus system designed for low-speed data transmission, signalling and power through a single wire.

To improve reliability, Unipi 1-Wire devices are designed for the best possible seriality and stability. This is achieved by using four conductors (GND, VCC, DATA-IN, DATA-OUT) - this arrangement is used for 8-port hubs, 1-Wire temperature sensors and other products from the Unipi 1W product range

Unipi 1-Wire sensors

  • 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 splitter
  • More info and tips regarding sensor connection are available in 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 1-Wire bus and sensor connection.

1W-T-IB on-wall sensor

  • variant of the 1W on-wall temperature sensor
  • an interior 1W sensor based on the DS18B20 chip
  • suitable for measurements in range of -10°C/+85°C
  • compatible with all Unipi 1W devices → 4-wire connection
  • easy connection to Unipi units
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi units with 1W bus including Unipi 1.1/Lite
  • Unipi Extension xG18 (with RJ45 connection)
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron units. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single unit. RJ45 connector can be also used to connect the sensor to older Unipi Patron or Neuron units, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.

1W-T-IB2 on-wall sensor

  • redesign of the 1W on-wall temperature sensor
  • an interior 1W sensor based on the DS18B20 chip
  • suitable for measurements in range of -10°C/+85°C
  • compatible with all Unipi 1W devices → 4-wire connection
  • easy connection to Unipi units
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi units with 1W bus including Unipi 1.1/Lite
  • Unipi Extension xG18 (with RJ45 connection)
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron units. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single unit. RJ45 connector can be also used to connect the sensor to older Patron or Unipi Neuron units, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.

The following sensors featuring rel. air humidity sensor are not compatible with Unipi Extension xG18 module.

1W-TH-IB on-wall sensor

  • indoor 1W temperature/humidity sensor
  • designed for on-wall installation
  • easy connection to Unipi units
  • compatible with all Unipi 1W devices → 4-wire connection
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature and rel. air humidity for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi units with 1W bus including Unipi 1.1/Lite
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron units. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single unit. RJ45 connector can be also used to connect the sensor to older Unipi Patron or Neuron units, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.

1W-TH-IB2

  • redesign of the temperature/humidity indoor sensor
  • designed for on-wall installation
  • compatible with all Unipi 1W devices → 4-wire connection
  • easy connection to Unipi units
  • possible connection through RJ45 connector via a suitable splitter/hub
  • additional info and tips for the sensor and its connection available in the 1-Wire article

Examples of use:

  • measuring indoor temperature and rel. air humidity for the purpose of control and regulation of heating, air conditioning, ventilation or heat recovery

Possible applications:

  • all Unipi units with 1W bus including Unipi 1.1/Lite
  • Unipi 1-Wire hubs or splitters (with RJ45 connection)

The on-wall sensor can be connected directly to the 1W terminal on Patron or Neuron units. Alternatively, you can use a suitable hub or splitter (requires adding RJ45 connector to the sensor's cable); this option allows for connecting multiple sensors to a single unit. RJ45 connector can be also used to connect the sensor to older Unipi Patron or Neuron units, or to Unipi 1.1/1.1 Lite. Further info is available in the 1-Wire article.