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