Bi-metal thermometers use a bimetallic strip to convert a temperature change into mechanical displacement. The strip consists of two strips of different metals which expand at different rates as they are heated. The different expansions are used to accurately measure the temperature.
Chase Controls is a stocking distributer for Blue Ribbon bi-metal thermometers. Blue Ribbons bi-metal thermometers are offered in either 3” or 5” dials. The 5” bi-metal is offered in various configurations including back mount, lower mount or every angle design. Stem lengths range from 2 ½” to 12”.