METER GROUP ECH2O GS 1 VOLUMETRIC WATER CONTENT SENSOR

Previously known as Decagon Volumetric Water Content Sensor

The GS1 is a ruggedized version of of the METER GROUP basic soil moisture sensor. It accurately measures volumetric water content in soil or soilless media. It distinguishes itself by longer lifetime, better soil-sensor contact and easier installation.

SENSOR	METER GROUP ECH2O GS1 VOLUMETRIC WATER CONTENT SENSOR
Part No.	ECH-GS1

TECHNICAL SPECIFICATIONS

Accuracy	Using a generic calibration: ± 0.03 m³/m³ (± 3% VWC) typical in mineral soils that have solution electrical conductivity < 10 dS/m. Using medium specific calibration, ± 0.01 – 0.02 m³/m³ (± 1 – 2% VWC) in any porous medium
Resolution	0.001 m³/m³ VWC in mineral soils
Range	0 to 57% VWC
Volume of influence	690 cm³ / See comparison article
Measurement speed	10 ms (milliseconds)
Sensor type	VWC: Frequency domain
Output	1,000 to 2,500 mV
Operating environment	-40°C to 50°C
Power	3.0 VDC to 15 VDC (absolute maximum) @ 15 mA
Cable length	Sensors come standard with 5 m cable. Custom cable lengths available. Maximum cable length of 75 m.
Sensor dimensions	5.1 cm x 2.4 cm x 2.1 cm

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