The ST4 is a soil temperature probe based on a 10K thermistor. The thermistor is housed in a stainless steel sheath of 6 mm nominal outside diameter, 120 mm long, connected to a 10 m cable.

Specifications:

– Probe type: 10k
– Measurement range: -10 to 40 C
– Accuracy: +/- 0.2
– Number of cores: 2
– Cable range: -10 to +40 C
– Cable type: PVC