The FAR011RA is a multi-drop sensor for the measurement of soil temperature. Multi-drop capability allows the hook up of multiple sensing elements of the same type of sensors
Temperature measurement is done using a Pt100 transducer with a responce curve according to the 1/3 DIN–43760 standard.
The sensing element (FAR040BA) converting the temperature value to an electrical signal is a platinum resistance (Pt100). Its resistance varies linearly with temperature variations.