HEITRONICS has ~50 years of infrared thermometer/radiometer manufacturing experience measuring sea surface, ice, land, sky & cloud temperature. Calibration Uncertainty as low as ~0.07 °C and Temperature Resolution as low as ~0.03 °C is available. The available housing constructions are very rugged but are compact, allowing for the installation in a wide range of vehicles and ground based applications. Blackbodies and Transfer Radiation Thermometers are also available for calibration purposes.