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Irrometer Model LT 12-Inch Low Tension Soil Moisture Tensiometer #512

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T13
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Product Description

Designed for conditions where readings above 30 centibars (kPa) are not expected, i.e. container media mixed with peat, bark, sand, perlite and vermiculite, or soils with large sand particles, such as Florida's “coral sand,” or Washington's “blow sand”, Irrometer Model LT Tensiometers are a simple, accurate, and reliable way to control irrigation scheduling and maximize water resources. They consist of a water filled tube sealed with a vacuum gauge and a porous tip. The vacuum gauge measures in Centibars (kPa) from 0 (completely saturated) - 40 (totally dry), with a normal operating range below 30 Centibars (kPa)***. In dry soil, water is drawn out of the Tensiometer creating a partial vacuum that's registered on the gauge. The drier the soil, the more pressure, the higher the reading. The wetter the soil, the less pressure, the lower the reading. In this way, Tensiometers act as a virtual root system, measuring how hard plants work to extract moisture, regardless of whether they're planted in sandy or clay soil. They're installed two at a time, one in the upper root zone and one in the lower root zone. The upper root zone determines when to irrigate and the lower root zone helps adjust irrigation amounts and system run-times. After installation, gauges are read 2-3 times between irrigation cycles. These readings tell how fast a crop is extracting water and when there's a need to irrigate. They can also be used to record / chart readings or to control / interrupt irrigation cycles that aren't needed. Service kit is required for first time installations. Made in the USA.

*** For conditions where readings below 30 centibars (kPa) are not expected, Irrometer Model SR Tensiometers are recommended.

*1st 2 product reviews copied from our old site

Warranty Information

Designed for conditions where readings above 30 centibars (kPa) are



not expected, i.e. soils mixed with peat, bark, sand, perlite & vermiculite,



or sandy soils, such as Florida coral sand," or Washington blow sand"



Simple, accurate, and reliable way to maximize water resources



Determine when to irrigate, irrigation amounts and system run-times



Water filled tube sealed with a vacuum gauge & replaceable porous tip



Virtual root system, measures how hard plants work to extract moisture



Measure in Centibars (kPa) from 0 (totally saturated) - 40 (totally dry)



Operating range: below 30 Centibars (kPa) (for 30 +, see model SR here)



Use to record / chart readings or stop unneeded irrigation cycles



Service kit (found here) is required for new or first time installations



Recommended Tensiometer lengths based on plant type found here



Total weight: 13 ounces



Made in the USA

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Product Reviews

  1. LT Tensiometer 5 Star Review

    Posted by on 18th Dec 2012

    This new tensiometer does a great job of monitoring our tomato crops which we have on drip irrigation. We needed a little more sensitivity in the low cb range and this works better for us than the standard tensiometer.


  2. low tension tensiometer 5 Star Review

    Posted by on 18th Dec 2012

    For years I heard my farmer friends talk about their tensiometers and how they saved them money and water. I was a little envious because the standard tensiometer didn't work in our greenhouse soils. This new low tension tensiometer is perfect for our growing media. Now I can brag back to my farmer friends and tell them how much I'm saving.



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