The PR1161 and PR1162 blackbody radiation cavities are used to calibrate infrared ear thermometers and infrared forehead thermometers respectively.
The outside metal coating of the black body cavity can effectively block the oxidation of the outer wall of the external environment, and the inside coating is made with high emissivity, which meets the requirements of specifications such as JJF1107-2003, JJF1164-2019 and meets the calibration requirements of most infrared ear thermometers and infrared forehead thermometers.