The Model LT IRROMETER was designed to effectively measure the very wet end of the soil.
The Model “LT” or Low Tension IRROMETER incorporates a replaceable Quick-Flo tip, and a sealed vacuum gauge which has a full scale of 0-40 cbar. Designed for situations where tensions above 30 cbar are rarely expected.
Measuring soil moisture allows a grower to make informed irrigation scheduling decisions that will improve yields and quality while reducing water, fertilizer, labor, and energy costs. LT IRROMETER’s are designed to operate in conditions where tensions above 30 cb (kPa) are not expected. Example applications would include avocado orchards on rocky hillsides, citrus in sandy Florida soils, or greenhouses with potting or non-soil growing media.
The IRROMETER LT measures soil moisture by interacting with the soil through a porous ceramic tip. As soil dries, it tries to pull water out of the instrument, creating vacuum measured by the gauge. This is a direct, physical measurement of the same tension plant roots experience, requiring no electronics, batteries, or calibrations to operate. IRROMETER tensiometers have been on the market since 1951 and are proven by decades of commercial usage and field research, trusted enough to serve as the calibration standard for other sensors.
One Service Unit is required to make the Irrometers work correctly. (One Service Unit is sufficient for multiple Irrometers.)Â LT Models use the SU1001 or SU1000.
See Related Products below.    See Documentation above for more info on How Irrometers Work?