109-L

Temperature Probe

The 109-L Temperature Probe has been specifically designed to operate with the CR200 range of data loggers. The probe accurately measures the temperature of air, water or soil in a range of applications.

The 109-L thermistor has the ability to be submerged underwater or buried to a depth of 164m (50ft) and measures temperatures from -50° to + 70°C. It is recommended that for air temperature applications the 41303-5A solar radiation shield be used to house the probe and limit solar loading on the sensor.


Features

  • Measures air, soil or water temperature
  • Designed to operate with the CR200 data loggers
  • Incorporates a thermistor as the active element

Specifications

  • Temperature measurement range: -50° to +70°C
  • Polynomial linearization accuracy: Maximum error is ±0.03°C at -50°C
  • Interchangeability error: Typically <±0.2°C over to +70°C range increasing to ±0.5°C at -50°C