SPS/Solotime carries an assortment of Longacre Pyrometers for your use.
We do not recommend Infrared (IR) pyrometers for use on tires. The outer surface of the tire cools too quickly and a probe type gets the core temperature, therefore is more accurate.
IR non contact pyrometers are best for reading brake temperatures, exhaust temps, etc.
For the best of both worlds, we recommend the Longacre 50620 Dual function pyrometer.
Below are some links to instructions (pdf's) of various Longacre Pyrometers:
Longacre Accutech 50640 Pyrometer
Longacre 50690 Memory Pyrometer
Longacre 50620 Dual Function Pyrometer with Probe