The ST2 is probe with a high specified thermistor sensor (2000 Ohms).
It has accuracy of +/- 0.1 degC over a temperature range of 0 to 70 deg C.
Dimensions are 4.8mm x125mm stainless tube and a 5m long cable.
The ST2 is similar to ST1, except that it is fitted with a higher specified thermistor sensor whose accuracy over a temperature range of 0 to 70 deg C (+/- 0.1 degC)
Thermistor contained in a stainless steel sheath of 4.8mm nominal outside diameter, 125mm long, which is, in turn, connected to a two core cable, 5m long.
Thermistor type - 2000 Ohms at 25 degrees C
Accuracy over a temperature range of 0 to 70 deg C +/- 0.2 deg C with a 6 second response.
Sensor can be buried in the soil or exposed for air temperature measurements.