The BB700 Series of Blackbody Calibrators are high performance, rugged, portable calibrators for infrared pyrometers. The BB702 has a range of 90 to 420°F. The BB701 Hot/Cold model has a range of -4 to 300°F. The BB701's ability to provide a stable, repeatable cold calibration point allows the user to calibrate or test most infrared pyrometers quickly and accurately without having to prepare an ice bath. Both models come with an RS232 computer interface which allows computer control of the set points for automatic test applications. An NIST traceable calibration is also provided.