Digital Catalytic Monitor -Fahrenheit (9-86F). Designed for woodstoves and inserts where conventional catalytic probe thermometers would be inaccessible or difficult to see. Powered by 9-volt battery, red LED read-out on electronic monitor is highly-responsive, displays 50-degree increments. Ideal for stoves made by Vermont Castings (Defiant, Encore and Winter Warm models), J&oslash;tul (Fireflight 12), Clayton Stove (Clay 60 Fireplace), Country Comfort (350-CC), Englander (24-JC) and Travis (Fireplace Xtrordinair). 4-inch stainless steel probe. 6-foot cable may be attached to either side of the remote display. For best visibility use built-in fold-out support. Made in USA. Also available in Celsius scale. Made in USA Ideal for Vermont Castings Defiant and Encore stoves Built-in fold out support 4-inch probe 6-foot cable