Dark-Field diffuse reflectance/transmittance probe. Dual purpose probe for transmittance and reflection measurements (adjustable pathlength from 1mm to 20mm). 1/2" probe shaft diameter and 8" shaft length for reflectance; 7/8" shaft diameter and 9" shaft length for transflectance. Probe includes sapphire window, 316 SS, Kalrez O-ring seal, 1.5 M bifurcated fiber bundle terminated by SMA connectors and push-button triggering switch. Max operating conditions 300 Celsius.