'Analog Panel Mount Thermometer, Vapor Actuated, 100 Degrees to 350 Degrees Temp. Range (F), Dial Size 3-1/2 In., Mounting U-Clamp with Back Outlet, Tube Length 120 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, 37 Degrees to 176 Degrees Temp. Range (C), Accuracy +/-1 Scale Division'