Combustion Efficiency Analyzer E1100 Providing the latest in Combustion Gas & Emissions Analyz ers for Boiler, Engine, Furnace, and other Combustion Applications A Built-In impact printer uses NON-THERMAL paper rolls for easy printing of data without extra parts or communications needed. The field-replaceable, precalibrated gas sensors can easily be replaced in the field to provide a convenient way to minimize costly downtime! BIG Bright BLUE Backlight w/ ZOOM Feature Magnetic Rubber Boot "Hands-Free" Unbreakable Metal Connections Durable "Boiler Room" Design