Pyrometer black body calibration source ER-1250S

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. - Range (at 23°C ambient): 15 ℃ to 50 ℃ (59°F to 122°F) - Working Area: Diameter 60mm (2.4"), Depth 118mm (4.6"), Hole 10mm (0.4") - Casing Material: Copper - Effective Emissivity: ≥0.9995