no gas sensor for testo 340

...Testo 340 and other flue gas analyzers. This sensor has a measurement range of 0-4000ppm. It is a pre-calibrated gas sensor; its adjustment data is stored internally, saving time-consuming calibration gas equilibration time and simplifying user operation....

...-to-use, state-of-the-art analysis tool provides you with quick and reliable readings and is built to last for years to come. 4-year warranty on the flue gas analyzer Bigger savings with longlife (LL) sensors. Because the O2 and...