MAS-1 water content

4-20 Milliamp Output, Ultra-Long Cable Lengths

The MAS-1 4-20 milliamp sensor is the primary current-based sensor to use Decagon’s unique 70 MHz technology. This sensor provides a standard 4-20 milliamp output that is expected with PLCs and irrigation controllers.  With the 4-20 mA interface, cable lengths exceeding 250 feet are possible.

Research Grade Accuracy

Like alternative Decagon soil moisture sensors, the MAS-1 measures soil moisture precisely without the sensitivity to electrical conductivity and variation in soil types that have hindered previous cost efficient sensors. The MAS-1 delivers lab grade accuracy at a price that makes large sensor networks economically viable. You can sufficiently fill your land with sensors at varying depths and locations, even if you’re on a restricting budget. And the MAS-1’s extended cable lengths give you yet more flexibility to put your sensors wherever you want. Engineered for Accuracy The MAS-1 calculates volumetric water content (VWC ) by analysing the dielectric constant of the substrate using capacitance/frequency domain technology. The sensor utilises a 70 MHz frequency,  which reducse salinity and textural influence, making the MAS-1 precise in most soil types and soil-less media. Factory calibrations are available for mineral soils, potting soils, and rockwool.

Reasons to pick the MAS-1

• If you need a 4-20 milliamp sensor
• If you need cable lengths greater than 250 feet

Accurate
Low cost of ownership

Operating Environment:-40 to 60°C

Suitable For:
Research
Monitoring
Irrigation Management
Soil, Moisture, Temperature Measurement
Fertiliser Control
Soil / Fertiliser Drainage
Water Level Monitoring
Micro-climate and Canopy