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Stevens Water Monitoring Systems, Inc.

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Popular liquid level sensor available in new range option

The popular and affordable SDX (Submersible Depth Transducer) liquid level sensor from Stevens Water Monitoring Systems is now available in a 0 to 5 foot range option, perfect for applications where the expected overall level change is minimal.
This new range option increases the resolution of the readings taken by the SDX, with its 4-20 mA output is being utilized over a smaller overall measurement range. Other measurement ranges available include 0 to 10 feet, 0 to 35 feet, and 0 to 50 feet.
The SDX is a versatile liquid level measurement sensor, offering 0.25 percent full-scale accuracy and fully-potted electronics contained in a EPDM rubber housing, making it an option for harsh environments that put more expensive sensors at risk of damage or loss.
Utilizing a vented cable, the SDX also uses an atmospheric pressure reference to ensure measurement accuracy.

SOIL MOISTURE MONITORING IN LOAM CONDITIONS

Stevens Water Monitoring Systems’ Hydra Probe soil moisture sensor now comes with a new loam setting feature that covers more of the soil triangle spectrum. Loam is a term used to describe a soil that contains mixtures of sand, silt and clay. The new firmware calibration model is based on the work of Mark Seyfried from the USDA-ARS and Keren Humes from the University of Idaho. The new loam setting is a calibration model now programmed into the Hydra Probe that was determined from a variety of different soils taken from different depths. This new calibration curve will make the Hydra Probe even more accurate over a wider range of soil types.