Analog Panel Mount Thermometer, Vapor Actuated, 30 Degrees to 240 Degrees Temp. Range (F), Dial Size 3-1/2 In., Mounting Surface with Bottom Outlet, Tube Length 60 In., Case Material Stainless Steel, Lens Material Polycarbonate, Tube Material Bronze Braided Copper, Sensor Material Copper, Sensor Length 1.87 In., Sensor Dia. 0.437 In., Sensor Connection 1/2 In. NPT, 1 Degrees to 115 Degrees Temp. Range (C), Accuracy +/-1 Scale Division