harsh environment soil sensor

Soil Moisture, Temperature & Electrical Conductivity Sensor for use in harsh environments


This reliable sensor has been developed specifically for use in harsh environments.  Constructed with an epoxy enclosure and stainless steel needles, this instrument can deliver highly accurate measurement of soil moisture, temperature and electrical conductivity.

Apparent Dielectric Permittivity (εa) Range 1-80 εa

Apparent Dielectric Permittivity (εa) Resolution 0.1 εa from 1-20, <0.75 εa from 20-80

Apparent Dielectric Permittivity (εa) Accuracy ±1 εa​ from 1-40, ±15% from 40-80

Soil Volumetric Water Content (VWC) Resolution 0.2% VWC from 0 to 40%VWC, 0.1% for >40%

Soil Volumetric Water Content (VWC) Accuracy ±3% VWC using Topp equation,±2% VWC using medium specific calibration

Electrical Conductivity (EC) Range 0-23 dS/m (bulk)

Electrical Conductivity (EC) Resolution 0.001 dS/m from 0 to 23 dS/m

Electrical Conductivity (EC) Accuracy ±5% from 0-5 dS/m, ±10% from 5-23 dS/m

Temperature Range -40 °C to +60 °C

Temperature Resolution 0.1 °C

Temperature Accuracy ±1 °C

Cable Length Supplied with 5 m cable. Custom lengths available up to a maximum of 75 m

Measurement Time 150 ms

Output RS232 or SDI-12