Widely specified in the industrial and commercial plumbing trade. Includes a separable thermowell. 3-1/2" Stem. Organic filled tube (non-mercury). Dual scale (degree F and degree C). Vari-angle connection and 360 degree case rotation for easy installation. Graphite filled bulb chamber for maximum heat conduction. +/-1 Percent accuracy. 5 Years warranty. Applications: new construction, plumbing, water lines, boilers, heating, ventilation and air conditioning. Case: 9" Valox, impact resistant. Lens: glass. Connection: 3/4" NPT with thermowell. Scales: aluminum painted white with black markings. Bulb chamber: tapered cast aluminum with graphite fill. Sensing liquid: organic fluid. Adjustment: fully adjustable. Thermowell: 3/4" brass separable socket. Enclosure rating: IP54. Temperature range: 30 degree F to 240 degree F.