Combustion Gas Analyzer: BTU 900

General Details


  • AUTOMATIC Direct Outdoor Air Temperature Measurement for ALL HIGH-EFFICIENCY & CONDENSING Boilers, Water Heaters, Furnaces, etc.
  • Upgradeable to NO/NOx
  • Now with Wireless Bluetooth™ Printer (no more lining up IR printers)


  • Combustion Analyzer for O2, CO, CO2 (Calculates Combustion Efficiency, Excess Air, Losses, CO Air Free)
  • Ambient Room Air Carbon Monoxide (CO) Leak Detector
  • Draft Meter (Negative & Positive Draft)
  • Built–In Differential Digital Pressure Manometer
  • Built–in Differential Thermometer


  • High Range CO Sensor (0–8000 ppm) with Integrated NOx Filter
  • High Range CO Sensor for Over–Range Protection
  • Flue Stack & Ambient Temperature
  • Outdoor Air Temp Measurement (High Efficiency & Condensing Boilers)
  • Flue Stack & Ambient Temperature
  • “Plug–n–Play” Pre–Calibrated Field Replaceable Sensors
  • Unbreakable Metal Connections
  • 600 Internal Test Memory
  • PC Software Package with USB & Bluetooth Communications Included
  • Wireless Bluetooth Included
  • 10 Fuels & Oils (Including Bio–Fuel)
  • Protective Magnetic Rubber Boot
  • Rechargeable Lithium Ion Battery Pack with AC Charger
  • ONE Button Operation with One–page Quick Reference Guide
  • Large, Bright BLUE LCD Backlit Display
  • Zoom Feature
  • IR Printer Port (Analyzer can print to your existing HP type IR printer)
  • Quick & Easy Intuitive Menu with One–Page Quick reference Guide
  • External Water Trap for Easy Condensate Removal
  • 12″ Probe Included with 10′ Dual Hose for Gas & Draft Measurements
  • Lightweight Vinyl Carrying Case
  • Economical, Ergonomic, Compact, and Rugged
  • Perfect for ANY Natural Gas, Propane, Oil, Wood, Coal, Bio–Fuel, and many more Applications
Product Video


Analyzer Setup & Maintenance Video