This precision instrument can measure thermal radiation of a black body, reflection of the long-wave thermal radiation, intensity distribution across the spectrum, Wien’s displacement law, and more. Built into a metal casing with polished horn, the thermopile includes 17 thermocouples and two 4-mm connection sockets, mounted on a shaft. The setting duration is 40 seconds for 95% of the measured value. Sensitivity: 0.28 mV/μW. Size: 1.5cm dia. x 9.4cm L x 4cm H; weight: 200g.