Wetted Materials: 316/316L polished stainless steel.Housing Material: 316 SS.Lens: Glass.Accuracy: ±1%.Temperature Limits: Head: 200°F (93°C); Stem: 800°F (427°C).Dial Size: 3" or 5".Process Connection: 1-1/2" or 2" sanitary clamp.Resolution: 2° (depending on range).Weight: 1.4 lb (635 g).