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TBSST04 SDI-12 Soil Temperature Probe


TBSST04 SDI-12 Soil Temperature Probe


TBSST04 is a soil temperature sensor with SDI-12 interface. It allows measuring the temperature on up to 3 different depth levels (up to 3 meters for each segment). The product is available in 3 variants, with one, two or three temperature sensors that are based on Swiss made PT1000 with 0.1 C accuracy.

The sensor is used to monitor the soil temperature and for specific applications like compost temperature monitoring where this parameter is critical to prevent sudden fire.

The standard configurations are:

TBSST04_1: 1 PT1000 sensor at the tip (segment length: 1m)

TBSST04_2: 2 PT1000 sensors (segment length: 50cm)

TBSST04_3: 3 PT1000 sensors (segment length: 33cm)

Please contact us if you have special configuration requirements.


  • Soil and compost temperature sensor
  • Measures temperatures on up to 3 levels
  • Each segment length: up to 3 m
  • Probe length: up to 9 m
  • Customizable probe length
  • SDI-12 Standard V1.4
  • 6 - 16V supply voltage
  • Less than 80µA idle current
  • Temperature accuracy: 0.1 C
  • Temperature resolution: 3 digits
  • Dimensions: 118x13x13 cm
  • Weight: 2.1 kg
  • Operating Temperature Range: - 40°C … + 80°C


  • Soil temperature monitoring
  • Compost temperature monitoring


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