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.
The WET Kit comes equipped with calibrations for generic mineral soils, organic soils, sand soils, clay soils, coir (coco fibre), peat based potting mixes, greenhouse ‘mineral’ soils, and Stonewool artificial mineral wool substrate (vertical and horizontal measurement).
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.
|Measurement||volumetric water content||Pore water conductivity||Temperature|
|Accuracy||± 0.03 m3.m-3 (3%)||see graph below||± 1.5°C|
|Soil moisture measurement range||Full accuracy over:|
0 to 1 m3.m-3
|see graph below||0 to 50°C|
|Salinity range||0 to 300 mS.m-1|
|Supplied with extended range calibrations which should be used for readings between 300 to 500 mS.m-1|
|Temperature range||-5 to 50°C|
|Output||Serial TTL data providing permittivity, bulk conductivity and temperature, from which water content and pore water conductivity are calculated|
|Power requirement||6-10 V, ~38 mA for 2.5s|
|Sample volume||~500 ml|
|Sample volume is weighted towards soil immediately surrounding the rods|
|Dimensions and weight||Overall: 120 x 45 x 13 mm |
Rods: 68 mm x 3 mm diameter
Outer rods 68mm x 3.0 mm dia
Central rod 65 mm x 5.0 mm dia
Weight: 0.1 kg
|Sensor calibrations||Sensor calibrations supplied in WET Sensor EEPROM|
Recalibration advised every 3 years (dependent on use)
Generalised Mineral ,Organic, Sand and Clay calibrations are supplied, specialist calibrations are available for horticultural substrates (please enquire at firstname.lastname@example.org for more information) .
Main components and software
Mountings and enclosures
Cables and networks
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