Portable Forehead Thermometers Black Body Constant Temperature Source

The RS-2265 is a portable standard blackbody source that integrates a standard forehead-temperature blackbody cavity into a sealed container utilizing water or antifreeze circulation for temperature control. This design achieves temperature field uniformity effects comparable to those of a temperature-controlled bath, with an effective emissivity reaching 0.999 or higher. The device features a 4mm diameter test port for temperature calibration and a 4-wire reference thermometer input port to facilitate temperature value traceability.