The testo 340 Flue Gas Analyser is an easy-to-use instrument that can be fitted with up to four different gas sensors.&nbsp;

The testo 350 is a rugged, easy-to-use exhaust gas analyzer designed to meet the highest demands when it comes to carrying out precise industrial emission measurements and providing proper data administration. The Analysis Box can be operated with up to 6 gas sensors, 5 of which are optional. This allows you to select freely from sensors for CO, NO, NO2, SO2, H2S, CxHy and CO2.

Cross sensitivity to SO<sub>2</sub> is blocked by the NO sensor replacement filter during flue gas analysis.

NO replacement filter for sensor

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Weight	6 g
Dimensions	length: 12.9 mm, ø: 29 mm
Product-/housing material	silver oxide
Product colour	white

NO replacement filter for sensor

NO replacement filter for sensor

General technical data