METER GROUP ECH2O EC-5 SOIL MOISTURE SENSOR

Previously known as Decagon EC-5 Soil Moisture Sensor

The EC-5 is a basic, reliable and low cost soil moisture sensor. The EC-5 determines volumetric water content (VWC) by measuring the dielectric constant of the media using capacitance technology. Its 70 MHz frequency minimizes salinity and textural effects, making this sensor accurate in almost any soil or soilless media. It is just 5 cm long, and has a 0.3 L measurement volume.

SENSOR	METER GROUP ECH2O EC-5 SOIL MOISTURE SENSOR
Part No.	ECH-5EC/5

TECHNICAL SPECIFICATIONS

Volumetric water content (VWC)	Range: 0%–100% Resolution: 0.001 m3/m3 VWC in mineral soils, 0.25% in growing media Accuracy: Generic calibration: ±0.03 m3/m3 typical in mineral soils that have solution EC <8 dS/m Medium specific calibration: ±0.02 m3/m3 in any porous medium (± 2%)
Temperature	Range: −40 to 60 °C Resolution: 0.1 °C Accuracy: ±1 °C
Dimensions	8.9 cm (3.50 in) lenght; 1.8 cm (0.71 in) width; 0.7 cm (0.28 in) height
Prong length	5 cm (1.97 in)
Operating temperature range	-40 °C to + 50 °C
Cable length	5 m (standard); 40 m (maximum custom cable length)
Supply voltage (VIN to GND)	2.5 VDC at 10 mA to 3.6 VDC at 10 mA
Measurement duration	Maximum 10 ms

PESSL INSTRUMENTS GmbH
Werksweg 107, A-8160 Weiz, Austria
Tel: +43 (0) 3172 5521, Fax: +43 (0) 3172 5521 23
E-mail: sales@metos.at, Webpage: www.metos.at