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Irrometer 524-RSU-V Tensiometer Model LT Voltage Output 24in

Price $202.98
Minimum Purchase:
1 unit

* Estimate is for US customers only.
* Shipping and Import Duties are calculated at checkout.
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524-RSU-V Model LT Voltage Output 24" (60cm) | Irrometer Soil Moisture Sensors

  • The "LT" (low tension) Irrometer is designed for situations where tensions above 30 cb (kPa) are rarely expected.
  • Ideal for very coarse soils and non-soil container-media or where rapidly changing soil water status needs to be observed.
  • Instrument includes a threaded replaceable (blue) Quick-Flo tip as well as reservoir, air free gauge chamber and hermetically sealed IRROMETER vacuum gauge with dual scale of centibars and kilopascals (0-40 cb [kpa] range)
  • The blue tipped LOW TENSION (LT) is designed for use in very course soils and non-soil container media with ranges from 0-40 cb (kPa)
  • RSU-V Remote Sensing Units are designed to show soil moisture levels by converting the reading to a voltage signal.
  • “V” Series Voltage Option is designed for use on IRROMETER instruments to indicate soil moisture status electronically.
  • The voltage output can be easily read by most brands of data loggers such as the WATERMARK Monitor.

Note: A Service Unit is necessary for proper operation of the IRROMETER® instrument and should be included on initial orders. One unit will service ALL of your IRROMETERS:

  • The Standard Service Unit (1001) is used during initial installation and then periodically for removal of air from instrument to ensure maximum sensitivity and accuracy.
  • The Test Pump Service Unit (1002) serves the dual purpose of removing air and testing the gauge in one operation.

Product Overview

The Tensiometer is the only direct measurement system available, which means that it actually reads the physical forces at work in the soil. Tensiometers act like a dummy root, allowing the soil moisture to interact with the instrument through the ceramic tip. Soil water tension outside of the instrument tries to remove the water from it, which creates a measurable tension inside the column. This tension is read with either a mechanical gauge or a transducer attached to the instrument. While this is the most accurate and proven method available, there is some maintenance required periodically to keep them full of water, and they must be removed from the field during the winter months to avoid freezing.

  • IRROMETER® measures soil water tension which indicates plant water availability.
  • The IRROMETER Tensiometer is the standard in accurate soil moisture measurement, offering growers an inexpensive and reliable means of measuring soil moisture for irrigation scheduling.
  • An IRROMETER will measure the actual soil water tension, which indicates the effort required by root systems to extract water from the soil.
  • Because the IRROMETER is a true measurement of soil water potential, the instrument is not affected by salinity and does not require site calibration.
  • The IRROMETER is available in several models, with standard lengths of 6", 12", 18", 24", 36", or 48" dependent on the rooting depth of the specific crop. 

Model LT Features

  • 0-40 cb (kPa) range gauge
  • “Quick-Flo” ceramic tip (blue)
  • Air-free gauge gives accurate readings
  • Large reservoir makes maintenance easy
  • Hermetically sealed gauge designed for harsh environments

Part | LT Depth

  • 506-AVS-30 | 6’’ (15 cm)
  • 512-AVS-30 | 12’’ (30 cm)
  • 518-AVS-30 | 18’’ (45 cm)
  • 524-AVS-30 | 24’’ (60 cm) 

New And Improved Gauges For 2019
Both SR and LT IRROMETERS now have a membrane vent for better temperature and elevation related compensation, a larger 2 ½ inch face for ease of reading, and a stainless steel rustproof body.

Data Options

Options for connecting IRROMETER tensiometers to data collection or control devices are available, including switching gauges as well as 4-20mA and 0.5V to 4.5V output transducers.

 Irrometer 524-RSU-V Tensiometer Model LT Voltage Output 24in

Irrometer 524-RSU-V Tensiometer Model LT Voltage Output 24in