System Components; Soil Sensors; Figure 2 - Rain Bird Tsm-3 (Type 3) Soil Sensor - Rain Bird ISDL-2400 Installation, Programming & Operation Manual

System Components

Soil Sensors

Soil Sensors provide real-time soil data (moisture,
temperature and salinity levels) at various locations on
the irrigation site.
The soil sensor is a small, durable, lightweight sensor that
is buried in the soil at various locations, providing accurate
readings of soil conditions. The sensors do not require
calibration and provide accurate readings immediately after
installation. Sensors connect to an ISDL-2400 Data Logger
using a three-conductor AWG-18 gauge irrigation cable.
The maximum cable length between sensor and Data
Logger is 300 feet.
The ISS manages a maximum of 198 soil sensors.
Each ISDL-2400 supports up to 18 soil sensors.
NOTE: Only Rain Bird approved sensors can be used
with ISS.

Figure 2 - Rain Bird TSM-3 (Type 3) Soil Sensor

Coaxial Impedance Dielectric type of sensor.
Integrated Sensor System 3