109SS-L Stainless Steel Temperature Probe

The 109SS is a rugged, accurate probe that measures soil or water temperature from -40° to +70°C. The 109SS consists of a thermistor encased in a sheath made from grade 316L stainless steel. The rugged stainless-steel sheath protects the thermistor, allowing you to bury or submerge the 109SS in harsh, corrosive environments. This probe also has a fast time response, and it can be easily interfaced with our data loggers.
  • Designed for harsh, corrosive environments
  • Fast response time
  • Wide temperature measurement range
  • Easy to install or remove
  • Compatible with most of our current and retired data loggers
Output Analog
Operating Temperature Range -40° to +70°C
Accuracy
  • Note: Overall probe accuracy is a combination of thermistor interchangeability, bridge-resistor accuracy, and error of the Steinhart-Hart equation. Interchangeability is the principle component error. If needed, an estimate of the interchangeability error for 0 to 50°C, that can be used as the Offset parameter of the Therm109() instruction, can be determined with a 1-point or 2-point calibration.
  • ±0.60°C (-40 to +70°C)
  • ±0.49°C (-20 to +70°C)
Maximum Submergence 45.7 m (150 ft) or 434 kPa (63 psi)
Temperature Measurement Range -40° to +70°C