The ST1 is a soil temperature probe based on a thermistor sensor. This is housed in a stainless steel sheath of 4.8 mm nominal outside diameter, 125 mm long, connected to a 5 m cable.

Specifications:

– Probe type: 2k
– Measurement range: -50 to 150 C
– Accuracy: +/- 0.2
– Number of cores: 2
– Cable range: -10 to +105