Fluke 9132 is a portable temperature-controlled radiating source for checking infrared thermometers and compatible thermal imagers. Match its 57 mm target to the optical spot of the instrument under test. The 9132 provides above-ambient points from +50 to +500 °C; its compact housing and carrying strap suit field work. A reference well behind the target supports contact checks with a reference probe. Digital control sets temperature in 0.1 °C steps and RS-232 provides computer communication. Select the method according to range, optical geometry and emissivity conditions.