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TP32MTT.03 Soil Temperature Probes

Make: Delta Ohm                                      Model: TP32MTT.03 & TP32MTT.03.1
✅ Temperature measurement at 7 levels (TP32MTT.03) or 6 levels (TP32MTT.03.1) used is Agriculture ,Geothermic studies
✅ Measurand: Soil Temperature
✅ Sensor Type: Pt100 1/3 DIN
✅ Signal Output: RS485 digital output
✅ Supplied With: Factory test/ Calibration Certificates..

TP32MTT.03 Soil Temperature Probes -for soil thermal profile measurement:

A soil temperature probe, such as the TP32MTT.03, is a device used to measure the temperature of soil at various depths. The TP32MTT.03 is a type of thermistor probe, which uses a thermistor (a type of resistor that changes resistance with temperature) to measure soil temperature.

The TP32MTT.03 probe is designed for use in a variety of soil types and has a measurement range of -40 to +85 degrees Celsius. It is constructed with a stainless steel housing and cable, and is waterproof, allowing it to withstand harsh environmental conditions.

Soil temperature is an important factor in many areas of agriculture, horticulture, and environmental research. For example, in agriculture, the temperature of the soil can affect the germination and growth of crops. In horticulture, the temperature of the soil can affect the growth and survival of plants, particularly in relation to frost protection. In environmental research, soil temperature can be used to study climate change and its effects on ecosystems.

The TP32MTT.03 probe can be used in a variety of applications, including research, monitoring and control, and precision agriculture. It is compatible with a wide range of data loggers and other monitoring equipment, allowing for easy integration into existing systems. The probe can be used to measure soil temperature at depths of up to 3 meters and the data can be recorded and analyzed to identify patterns and trends.

It is easy to install and can be pushed into soil or dug in using auger, probe is also can be installed in a soil pits or lysimeters. After the installation, measurements can be taken regularly to monitor changes in soil temperature over time. The data from the probe can also be used to create detailed temperature profiles of the soil, which can be used to better understand the soil’s thermal characteristics and how it responds to changes in weather and other environmental conditions.

Overall, the TP32MTT.03 soil temperature probe is a versatile and reliable device for measuring soil temperature in a wide range of applications. It is rugged, waterproof, and easy to use, making it well-suited for use in a variety of field conditions.

It is equipped with seven Pt100 1/3 DIN sensors for measuring the temperature at a depth of +5 cm, 0 cm, -5 cm, -10 cm, -20 cm, -50 cm, and -1 m with respect to the ground level, according to the WMO indications.

It is equipped with six Pt100 1/3 DIN sensors for measuring the temperature at a depth of +5 cm, 0 cm, -5 cm, -10 cm, -20 cm, and -50 cm with respect to the ground level. The fiberglass tube ensures perfect impermeability and high thermal isolation along the terminal axis.

Digital RS485 output with MODBUS-RTU protocol 8-pole M12 male connector. Power supply 6—30 Vdc It can be connected to the RS485 port of the HD32MT.1 or the HD32MT. 3 data loggers

Application and features of TP32MTT.03 Soil Temperature Probes:



✅ Agriculture
✅ Geothermic studies
✅ In accordance with the requirements of the World
✅ Meteorological Organization
✅ RS485 digital output with MODBUS-RTU protocol
✅ Accurate and stable measure over time
✅ Degree of protection IP 68
✅ Minimal invasiveness in the soil

Delta Ohm


TP32MTT.03 & TP32MTT.03.1


Pt100 1/3 DIN


0.01 °C


± 0.1 °C @ 0 °C

Working Temperature

Stem: -40…+125 °C
Hand grip: -40…+85 °C

Temperature Drift

0.003 %/°C @ 20 °C

Power Supply

6…30 Vdc


5 mA @ 12 Vdc


RS485 with MODBUS-RTU protocol


8-pole M12 male connector


Optional, with 8 poles with length of 2, 5 or 10 m (to be defined at the order) with open wires at the end.

Protection Degree

IP 68

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