The updated BTU2200-NOx portable combustion analyzer (O2, CO, CO2) is NO/NOx upgradeable. Standard on this multifunctional unit is a durable and high-range CO sensor with built-in NOx filtration. Field-replaceable sensors are now available for easy diagnostics and replacements to eliminate downtime and costly repair charges. Features include built-in printer (non-thermal), unbreakable metal connections, and robust boiler room design. The combustion analyzer has a built-in manometer, a built-in thermometer (ambient and flue gas), and a built-in CO leak detector. It comes with a rechargeable battery, ac charger, and a vinyl carrying case.

E Instruments, HVAC Dept., 172 Middletown Blvd., Ste. B201, Langhorne, PA 19047; 215-750-1212; 215-750-1399 (fax); www.e-inst.com

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