The BT30 3” bimetal dial thermometer is constructed from welded SUS 304 stainless steel and has a durable polycarbonate lens, making it ideal in even the toughest environments. It comes with a 1/2" NPT connection with multiple mounting types and a variety of stem lengths and temperature ranges to suit your needs. An external recalibration screw is included on the back of the case. General Specifications Dial Diameter: 3" Case Material: Stainless Steel Lens Material: Polycarbonate Mounting Type: Center Back, Bottom/Low, and Adjustable Connection: 1/2" NPT Stem: 2.5", 4", 6", 9", and 12" long with 0.25" O.D. Additional stem lengths may be available - please contact us to find out. Dial Face: Standard white dial with black and blue markings, Howe logo. Black pointer. (Actual dial faces may vary with no logo and/or with an aluminum background with all black markings. These variations have no effect on the accuracy of the product.) Temperature Range: Varies - not all temperature ranges present online. Contact us if you are in need of a specific range and cannot find it here. Features: External Recalibration Screw
