The testo 330-2 LL professional long-life set for customer service and service engineers means you have the professional equipment you need for all measuring tasks to do with heating systems. The comprehensive selection of gas probes enables a really wide range of flue gas measurements – there is therefore generally no need for any other measuring instrument. You can define other fuels yourself as required. The successful combination of outstanding sensor technology, longevity and reliability make the testo 330-2 LL flue gas analyzer a real mainstay. The sensor service life of up to 6 years means that you can dispense with at least one sensor replacement during the typical period of use. Flexible to use for flue gas analysis – the applications The flue gas analysis set already contains all the accessories required for the most important measuring tasks to do with heating. You can extend it for additional measurements, thanks to a large range of probes and sensors, if needs be. Suitable for the following applications: Flue gas measurement (combustion air temperature, flue gas temperature, O2, CO and CO2 concentration and as an option: NO / NO2, flue gas loss, gas-air ratio and efficiency) Draught measurement in parallel to flue gas measurement Gas flow and static gas pressure (with optional pressure connection set) 4 Pa measurement (with optional fine pressure probe) Gas leak detection (with optional probes) Ambient CO / CO2 measurement (with optional probe) Differential temperature measurement to determine the spread between flow and return (with optional probe) CO measurement with 15-minute mean value calculation Data recording for up to 2 hours possible Performance of gas tightness tests (150 mbar, with optional pressure connection set) Automatic burner error diagnosis through optional readout adapter (for digital automatic furnaces)