The hand-held GreenLine 4000 is suitable for tuning, maintenance and emissions monitoring for boilers, burners, heaters, and other combustion applications. Features include CO sensor dilution with autoranging up to 10 percent; up to four gas sensors; low NOXand true NO Xcapabilities; efficiency, excess air and CO2calculations; and draft and differential pressure measurements.

E Instruments Group LLC, (215) 750-1212

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