SM150T User Manual 1.0 Introduction 5
Introduction
Description
The SM150T 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 ± 3%
Soil temperature to ± 0.5 °C over 0-40 °C
Low salinity sensitivity
Excellent stability
Minimal soil disturbance
Easy installation at depth in augured holes
Waterproof connector to IP68
Rugged, weather-proof and can be buried.
Good electrical immunity
Choice of cabling system options
Cable connector, cylindrical profile and extension tube design
simplifies removal for servicing
Dedicated HH150 meter kit for simple readings
HH2 meter1, GP1, GP2, DL6 and DL2e logger compatible
See also Specifications on page 33
