The BB703 is a high performance, rugged, miniature blackbody calibrator. It is used for infrared pyrometer calibrations with a temperature range of Ambient +10 to 400°C (Ambient +20 to 752°F). With its unique miniature design and built-in 29 mm (1.125") target aperture, the BB703 is an ideal and economical infrared calibrator for any laboratory or field service application.