Raytek Noncontact Infrared Pyrometer CI - Noncontact Infrared Pyrometer The Raytek CI noncontact infrared pyrometer is compact and easy to install. Designed for easy integration into a standard 4-wire system, the CI sensor can easily replace traditional contact probes with a J-type or K-type thermocouple output. A 0-5 volt output is available if your is susceptible to noise or requires a longer cable run. Raytek Noncontact Infrared Pyrometer is available through HeatSource.