Analog Panel Mount Thermometer0 Degrees to 200 Degrees Temp. Range (F), Dial Size 2-1/2 In.Case Material Stainless SteelAccuracy +/-1 Percent Specialty Bimetal Dial ThermometersCorrosion-resistant stainless steel housings are hermetically sealed to prevent crystal fogging in tough environments.Accuracy: 1% 1/4"-dia. stem Stainless steel construction Glass display window