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Description

The SM300 measures soil moisture content and temperature. Its sealed plastic body is attached to two sensing rods which insert directly into the soil for taking readings. A waterproof plug connects to a choice of signal cables. Both extension cables and extension tubes can be used.

The soil moisture output signal is a differential analogue DC voltage. This is converted to soil moisture by a data logger or meter using the supplied general soil calibrations. It can also be calibrated for specific soils.

Features

  • Soil moisture accurate to ? 2.5%
  • Soil temperature to ? 0.5?C over 0-40?C
  • Low salinity sensitivity
  • Excellent stability
  • Minimal soil disturbance
  • Easy installation at depth in augered holes
  • Waterproof connector to IP68
  • Rugged, weatherproof and can be buried.
  • Good electrical immunity
  • Choice of cabling system options
  • Cable connector, cylindrical profile and extension tube design simplifies removal for servicing. See also Specifications on page 25
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