testo 330-1 ll flue gas analyzer with long-life gas sensors; bluetooth and with h2-compensated co-sensor, incl. rech. battery and calibration protocol; with graphic display; version 2010. these are the main features :
high-resolution colour display for the graphic representation of your measurement data
extended measurement menus – such as gas pipe testing – for a comprehensive analysis of your heating system
logger function for easy long-term recording of the measurement curve