Designed for the most important application – yours!
The 350's modular design provides vast opportunities to configure an analyzer system
for your specific testing requirement. Application configured kits make the testo 350
perfect for you.
The most accurate sensors for low range NOx (NO & NO2) and CO
(0.1 ppm) or swap out for higher range testing
Superior sample conditioning proven to be effective, convenient,
and vital for accuracy
Integrated dilution system for extended testing ranges, greater sensor
protection and unlimited testing possibilities
Easy data logging with on-board, user defined, automatic testing programs
that can last for minutes or months
Powerful software options that provide a wealth of information and complete
control from your keyboard
Plug and play smart sensors are field replaced in seconds.
Delivered factory-calibrated for immediate accuracy.

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EasyEmissions, the powerful software
tool for the testo 350
The easyEmissions software package allows the user to control every function of the 350. The software provides extraordinary data management capability and the ability to import/export data from a number of different formats, effectively increasing the versatility and flexibility of the 350 to meet the user's testing and data management needs.
Click here for details.
350 Data Bus System for Multi-Unit, Simultaneous Testing
Understand your process inside and out with multiple 350 analyzer boxes. Real
time, user defined measurements are displayed individually from each analyzer or
simultaneously as a graph or table in our software package. Six channel analog output
boxes can be looped in the bus system to provide a user scaled 4-20mA output.
Click here to see how the 350 will make your SCR testing easier.
Exclusive testo 350 XL data bus system
(max 16) 4-20mA analog output box
EasyEmissions, the powerful
software tool for the testo 350