Compact Industrial Thermometer, 50 Degrees to 400 Degrees F/25 Degrees to 200 Degrees C, 1/2 in MNPT Thermometer x 1/2 in MNPT Thermowell, Back, 6 in Scale Length, Thermowell Material Brass, Shank Type Straight, Blue, 5 Degrees F/5 Degrees C Graduations, Liquid-in-Glass