EQ3 Equitensiometer from Delta-T Devices is a maintenance-free soil sensor for measuring water potential and temperature in soils, using ThetaProbe technology. Designed for long-term monitoring in dry or frozen soils, it operates in the range 0 to -1000 kPa and is buriable and frost-resistant (IP68).

  • Soil sensor for water potential and temperature measurement

  • Maintenance-free, no refilling or degassing needed

  • Accurate readings in dry soils, range 0 to -1000 kPa

  • Buriable and frost-resistant to IP68 standard

  • Built-in temperature sensor

  • Compatible with Delta-T and other data loggers

  • Individual sensor calibration supplied

Applications

  • Long-term soil water potential monitoring

  • Plant water stress studies

  • Environmental and ecology research

  • Civil and agricultural engineering

  • Soil and geo-sciences research

  • Monitoring in frozen soils

Dimensions

Length 181mm

Diameter 40.5mm

Weight 0.3kg (excluding cable)

Performance

Measurement range 0 to -1000 kPa

Accuracy ±10 kPa (0 to -100 kPa), 10% of reading (-100 to -1000 kPa)

Temperature accuracy ±0.5°C (0 to 40°C), ±0.75°C (-20 to +60°C)

Salinity range suitable for all non-saline soils

IP68 rated for burial and frost resistance

Installation

Can be inserted into augured holes or trench walls and backfilled

Optional extension tubes for deep placement and removal

Maintenance

No refilling, degassing, or topping up required

Recalibration advised every 2 years