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TERRA-TECH, INC.
1-1-A1208,Sanda-Machi
Hachioji-City, Tokyo
193-0832 Japan
TEL: +81-42-662-4122
FAX: +81-42-662-4120

info@ttij.com

Innovative Equitensiometer for soil water potential measurement

● Worldwide, the first highly accurate instrument for measuring soil matric potential (suction, soil moisture)
● Cover the whole range of soil water potential in which plant growth occurs ( 0 to -1500 kPa or 0 to -15 bar)
● Maintenance-free for outdoor conditions, not affected by over-range
● Independent operation on a wide range of soil types and conditions
● Very low power consumption
● Easy installation
● Data recording with data logger or display with simple voltmeter
● More than 5 years field testing
Technical Specification
Item Contents
Measuring parameter Matric potential of soil
Range 0 to -1500KPa ( 0 to - 15bar)
Accuracy Between 0 Kpa and - 100KPa: ±10KPa, Between -100KPa and  -1500KPa: 10%
Hysteresis Very low,can accurately follow any changes of matric potential in soils.
Use area Monitoring of soil hydrology, plant physiology, soil water status, irrigation control etc.
Application Wide ranging soil types for long periods.
Interface Input requirements 5-15V DC, Current consumption: max.23mA, Outputsignal:100-800mV DC.
Case material Stainless steel
Dimensions and weight 170mm(Length) X 40mm(Width) 20mm ( Thickness) Standard cable length: 5m, max.Length:100m, weight :350g without cable
Ordering Information
Model Comtents
EQ15 / Basic Basic version  for use shallow soils
EQ15 / Adapter Equipped with a screw to connect with an extension tube, enabling installation in deep soils.
EQ15 / Tube-1m    1 m PVC extension tube
EQ15 / Tube-2m 2 m PVC extension tube
EQ15 / Cable Additional cable fitted to EQ15. Max. recommended length 100m.
Quartz powder To improve the contact with EQ15 to soil, recommendedfor use in stony soils.
Data Logger On request
For more info.  >>  PDF Catalog 0.4MB