Testo 300 Combustion analyzer LL-Industrial 3-gas meter (for upgrading)

0633 3004 85 – testo 300 Long Life with:
O2 (0-25%), CO (0-8000 ppm with dilution to 30,000 ppm), NO (0-3000ppm)
Power supply w/USB power/communication cord (type A male/micro B male)