Condar FlueGard™ Thermometer (3-39). Most Precise Readings for Double Wall Pipe. Durable Genuine Porcelain Enamel with Yellow, Orange and red Zones Clearly indicated on Black case

For the most precise readings for DOUBLE WALL pipe. Durable genuine porcelain enamel with yellow and orange zones clearly indicated on black case -- shows temperatures in the center of the fluepipe, at a glance. Stem length 4 inches, engineered to measure accurately, for any diameter fluepipe up to 8 inches. Requires ¼ inch hole. Mounts easily with included magnet and eyelet. Readings up to 1700° Fahrenheit. Rugged steel case. Made in USA. ABOUT CONDAR: When you order Condar's award-winning products, you can be sure you are getting expert engineering, innovative designs, and unsurpassed durability. Condar is an independently owned company where folks take pride in their work. Located in the Blue Ridge Mountains of western North Carolina, Condar is dedicated to quality American manufacturing. The Condar staff emphasizes efficient, professional customer service, delivering trustworthy value, to earn your business "one order at a time." And as an experienced exporter, Condar regularly ships products all over the world.