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TEROS 32 Field High Precision Soil Water Potential and Temperature Tension Meter
TEROS 32 Field High Precision Soil Water Potential and Temperature Tension Meter
Product details

A tensiometer is a widely recognized sensor that can directly and accurately measure the water potential of wet end soil. But many tension meters require complex wiring and data programming to operate properly, let alone subsequent maintenance.

METER has developed the revolutionary sensor TEROS 32, bringing a new way of measurement.

TEROS 32 originates from METER (formerly UMS) in Germany, which is a plug and play tensiometer with accurate and reliable measurement results.

With the ZENTRA Cloud system, almost real-time accurate data can be easily obtained, and all data can be uploaded to the cloud for efficient management and ensuring the normal operation of instruments. No matter where you are, you can immediately extract data and know exactly when to add water or empty it, saving time and money.

The combination of TEROS 32 and TEROS 12 can generate soil moisture release curves in situ.

TEROS 32 uses high-precision piezoelectric sensors that provide higher data resolution and are more robust and durable than previous tensiometers, ensuring year-round field operation.


The sensor does not need to be removed from the soil during the process of adding water or emptying. The most important point is that compared to the previous generation of tensiometers, it responds faster to rapidly changing soil environments, allowing for the measurement of small changes in soil water potential. It can also measure positive and negative pore pressures simultaneously.


Over the past 25 years, METER (formerly UMS) has sold more than 20000 sensors.

Main Features

  • High precision field tensiometer

  • Direct measurement without calibration required

  • Simultaneously measure positive and negative pore pressures

  • Can connect to ZL6, plug and play, compatible with third-party data acquisition

  • Connect to ZENTRA Cloud system to view and share data in real-time

  • High quality ceramic cup with a ten-year warranty

  • Integrated temperature sensor

  • Protection level up to IP68

  • Installation depth exceeding 30cm (excluding frozen soil layer), can be used throughout the year

  • During the process of adding water or emptying, the sensor does not need to be removed from the soil


technical indicators

measurement parameters Water potential temperature
measurement range -80 ~ +50 kPa -30 ~ +60
resolution 0.0012 kPa ±0.01 ℃
accuracy ±0.15 kPa ±0.1℃(-20℃~40℃);±1 ℃ (outside this range)
output DDI serial port or SDI-12
Support data (purchased separately) METER ZL6 /EM60
Data acquisition with 3.6-28.0 VDC power supply and SDI-12 communication mode
size 长: 40.0 cm (15.75 in); 80.0 cm (31.50 in); 120.0 cm (47.24 in)
Diameter: 2.5 cm (0.98 in)
Operating Temperature Minimum: -30 ℃ (0 ℃ when filled with water)
Maximum: 50 ℃
material Ceramic Cup: AI203Bubble point 1500 kPa

Tension meter shaft: PMMAorganic glass

Corpus: POM GF glass fiber reinforced polyoxymethylene
Water injection pipe: stainless steel
installation angle Horizontal angle: 10 °~80 °°(Down) -10°~ -80°(Upward)
Cable length 5 meters (standard)
75 m (maximum customizable length)
interface type 3.5mm stereo interface or tin plated bare wire interface
Comply with standards Produced under ISO 9001:2015 standard
EM ISO/IEC 17050:2010 (CE 标志)
2014/30/EU and 2011/65/EU


Origin and manufacturer: GermanyMETERcompany(formerly UMS Germany)




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