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Using chemiluminescence technology, the Model 42i LS measures the amount of nitrogen oxides in the air from sub-ppb levels up to 100ppm.The Model 42i LS is a single Chamber, single photomultiplier tube design that cycles between the NO and NOX modes.

The 42i LS has independent outputs for NO, NO2, and Nox and each can be calibrated separately. Dual range and Auto range are standards features as well. If required, the instrument can be operated continuously in either the NO or NOX modes allowing for response times of less than 5 seconds.

NEW! Introducing the Model 42i LS with optional O2 sensor.
The Paramagnetic Oxygen Sensor gives the source measurement of NOx extended capabilities. The ability to read and report the concentration of Oxygen in the sample stream up to 100%. For more information please see the datasheet included on this page.

Standard on the Model 42i LS
Temperature and pressure correction. User settable alarm levels for concentration and for a wide variety of internal diagnostics are available from an easy to follow menu structure.

An Ethernet port as well as flash memory for increased data storage are also included. Ethernet connectivity provides efficient remote access, allowing the user to download measurement information directly from the instrument without having to be on-site.

You can easily program short cut-keys to allow you to jump directly to frequently accessed functions, menus or screens The larger interface screen can display up to five lines of measurement information.