Infrared ear Thermometer Black Body Source

The ER-1250S is a standard ear-temperature blackbody cavity with an effective emissivity exceeding 0.999x. The cavity features a 2mm wall thickness, is manufactured from pure copper, and has an interior surface coated with non-reflective black paint. The complete blackbody assembly consists of the blackbody cavity and a submerged water tank bayonet mount, and is designed for use within a constant-temperature water bath.