The C50 Combustion Analyzer helps technicians achieve combustion efficiency quickly, accurately, and easily! Perfect for residential and light commercial efficiency testing and tuning of furnaces, and hot water heaters.

Features
• Measures flue temperature and oxygen
• Calculates carbon dioxide, gross/net efficiency and excess air
• Infrared printer ports allows for printing results to an
  optional printer with date and time
• Large back-lit LCD, 2 line display
• Protected boot with an integral magnet
• Three year limited warranty
• Two year limited warranty on sensors