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Fyrite® InTech® Combustion Analyzer

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The Fyrite® InTech® residential analyzer is a next generation redesign of our popular Tech 50/60, developed on the proven INSIGHT® platform to include more features with a lower cost of ownership. It provides rugged, reliable, long-running performance in a light, handheld unit - offering service technicians the easiest and most affordable way to gain the benefits of electronic-combustion testing.

B-Smart® pre-calibrated CO sensors (0-2,000 ppm), 6 pre-programmed fuels including propane (10 for EU version), and a high-contrast graphic display, with backlighting, make the Fyrite® InTech® a feature-packed, easy-to-use instrument. Its internal memory is capable of storing up to 10 complete records, which can also be printed via an infrared printer using an optional reporting kit.

The instrument is also offered in various reporting kit configurations as well as an O2 only model.


  • High-contrast, backlit LCD display
  • Combustion and efficiency analyzer - 6 pre-programmed fuels (10 for EU version)
  • Direct measurement of O2, CO (0-2,000 ppm), stack and ambient temp.
  • Calculated measurement of combustion efficiency CO2, CO (air-free) and excess air
  • Easy access to sensors
  • New B-Smart® technology for in-field pre-calibrated sensor replacement
  • O2 and sensor life indicator
  • Calibration reminders
  • Fyrite® User Software (PC) and reporting package (optional)
  • Customize printed reports with your company name and logo
  • Software updates
  • Internal storage for up to 10 complete test records
  • Print data via optional wireless printer
Measurement Ranges:
Ambient Temperature:23° F to 113° F (-5° C to 45° C)
Flue Gas Temperature:-4° F to 1,202° F (-20° C to 650° C)
Oxygen (O2):0.0% to 20.9%
Carbon Monoxide (CO):0 - 2,000 ppm
Calculated Ranges:
Combustion Efficiency:0.1 to 100%
Carbon Dioxide (CO2):0.1 to a fuel dependent maximum (in %)
Carbon Monoxide (Air-Free):0 to 9,999 ppm
Excess Air:0 to 250%
Selectable Fuels:
6 pre-programmed:Natural Gas, Oil #2, Oil #6, Kerosene, B5, and propane/LPG | (10 fuels available with Siegert version)
Data Capacity:Up to 10 complete records, internal storage
Dimensions:8.0"h x 3.6"w x 2.3"d (20.3 cm x 9.1 cm x 5.8 cm)
Weight:16 oz. with batteries (0.45 kg)
Power:4 AA Alkaline batteries (included)
Run Time:Minimum 20 hours, typical battery life
Approvals:EN 50270, CE mark, EN 50379
Warranty:Instrument, CO and O2 sensors - 2 Years
Display Languages Available:English, French, Spanish, Polish, German, Italian, Dutch, Danish

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Thomas No.
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Fyrite InTech (O2 only, includes probe, 4 AA batteries, soft-carry case)
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Thomas No.
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Fyrite InTech (CO, O2 , includes probe, 4 AA batteries, soft-carry case)
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Thomas No.
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Fyrite InTech (CO, O2 , includes probe, 4 AA batteries, protective rubber boot, spare filters (qty. 3), reporting kit and hard carrying case)
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