It is the immediacy of the data which the WET Sensor provides that is valuable to us, not just the excellent accuracy.
In terms of benefits that the WET Sensor provides, it not only gives us the confidence that we have optimal growing conditions at all times, it has also enabled us to reduce irrigation levels (whilst enhancing produce quality) - eliminating unnecessary water wastage and reducing expensive fertiliser costs." Nick Deppe, Farm Manager
Clock House Farm, Kent, UK
- Measures Water content, EC and Temperature
- Complete kit with readout unit & case
The WET Kit provides researchers with a powerful portable tool for assessing growing conditions in soils and substrates. The WET Kit measures and displays 3 important variables that influence plant growth: water content, temperature and pore water conductivity (ECp) – the EC of the water available to the plant.
The kit comprises a WET Sensor, an HH2 Moisture Meter (readout unit) and a carry case.
Three types of WET Kit are available – each with a different set of substrate calibrations, including coir, peat and mineral wool. Please download our Soil Moisture Measurement catalogue or contact Delta-T Devices for ordering information.
Video – The Wet Kit’s use in commercial horticulture
WET Sensors used aboard China’s Tiangong-2 Space Station
The WET Sensor has been used by Chinese astronauts to conduct horticultural experiments in space. find out more.
|Permittivity, ε′||1 to 80 ± 2.5 |
|Bulk conductivity||0 to 300 mS.m-1 ± 10 (ECb)|
|Temperature||-5 to 50°C ± 1.5°C|
|Volumetric Soil Moisture, θ||0 to 100% ± 3% |
|Pore water conductivity||see graph below (ECp)|
|Calibration||Individual sensor calibrations stored within sensor EEPROM|
|Output||Serial data (TTL)|
|Environmental||IP68, 0 to 50°C|
|Power||6 to 10V, ~38mA for 2.5s|
|Dimensions||~120 x 45 x 13mm|
Permittivity is a measure of the dielectric properties of materials, e.g. soils and substrates.
 Soil moisture accuracy refers to errors after applying a soil-speciﬁc calibration, within 10°C of calibration temperature.
For more detailed WET Sensor specifications see Soil Moisture Measurement Catalogue
Main components and software
Mountings and enclosures
Cables and networks
GPRS remote comms
Spares and consumables
Sensor Calibration File Locator
Input your 5 or 6 digit serial number below (do not include a slash, space or any letters) to download your EQ3 Sensor calibration file. (Example: 001024).
The serial number can be found on the label wrapped around the sensor body. Contact email@example.com if your serial number is not recognised - and we will assist you directly