Delta-T Devices - Model WET-2 - Irrigation Research WET Sensor

If the WET Sensor is purchased with an HH2 Moisture Meter (as part of the WET Kit) it will be 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).

If the WET Sensor is used with a GP1 Logger or GP2 logger it will be equipped by default with calibrations for generic mineral soils, organic soils, sand soils and clay soils. Two additional calibration upgrade packs are available – one of which contains calibrations for coir (coco fibre), peat based potting mixes, and greenhouse mineral soils, and one which contains Stonewool artificial wool substrate (vertical and horizontal measurement). See the accessories section of this page for more details.

WET Kit and standalone WET Sensor options

WET-2 KIT
Comprises WET-2/d WET Sensor, HH2 Moisture Meter (including alkaline battery and comms cable), spare battery, USB-RS232 adapter cable, user manuals and WCC1 carrying case.

Includes sensor 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).

WET-2/d
Sensor with 1m cable and 25- way D-socket for use with HH2 Moisture Meter.

WET-2/w-05
Sensor with 5 m cable terminating in bare wires for use with GP1 or GP2.

Nutrients are sometimes provided by fertigation but are often provided by Controlled Release Fertilisers (CRF). The rate at which these are taken up depends on several factors, includingthe weather conditions and irrigation regime.

The Delta-T Devices WET Sensor can be used to measure the EC within the growing media and so take much of the guesswork out of this process.

Where plants are grown in artificial substrates using hydroponic or fertigation systems, nutrients are routinely supplied in irrigation water. Nutrient levels are controlled by monitoring the water content and conductivity (EC) and adjusting the injection of liquid fertiliser into the irrigation water. The Delta-T Devices WET Sensor excels in monitoring this crucial information.

WET Sensors are normally ordered as a complete kit that includes a WET Sensor, an HH2 Moisture Meter and a handy carry case. There are three types of Kit – each with a different set of substrate calibrations, including coir, peat and mineral wool. Please see below for further information on substrate calibrations and kits.

The WET Sensor is used throughout horticulture, especially by soft fruit growers and for crops grown in protected environments, where correct growing conditions are critical to both yield and flavour. The compact sensor can be inserted directly into the growing medium with minimal disturbance to either roots or shoots, and provides information for process optimisation, checking growing condition uniformity and precision irrigation.

• Measures Water content, EC and Temperature
• Measures directly within the root zone
• Rapid checks of growing conditions
• Ideal for precision irrigation