The Subgrade Temperature Probe is a 9’ array of thermistors which is designed to be installed in pavement subgrade to measure thermal profile over the long-term. Two types are available: analog and digital.
The analog design is compatible with traditional CRREL (Cold Regions Research and Engineering Laboratory) types, in which the individual thermistors are connected sequentially to an external data logger which sends clocking pulses to advance to the next channel. The thermistors are more closely spaced (3”) near the top to respond to the steep gradient to the pavement surface temperature, while at depth the thermistors are spaced 6” apart.
- Analog or digital versions.
- Dedicated connection for each thermistor to power, analog/digital converter and calibration microcontroller.
- Superb resolution and accuracy
- For installation in pavement subgrade to measure thermal profile over the long-term
View PDF Datasheet below. Some browsers do not support this function, you can Download Here.