Free shipping over $99. | Need help? Call or text (786) 239-7444.

Hvac And Tools Direct Logo Svg
BWP PrimeBlue Preferred
Bbb Logo 3 Svg

Free shipping over $100

Hvac And Tools Direct Logo Svg
Home / Shop / HVAC Test & Measurement Tools / Combustion Analyzers / Fieldpiece Combustion Analyzer CAT45

Fieldpiece Combustion Analyzer CAT45


Available on backorder

FREE delivery over $99

Easy 30 day return (Domestic)

Easy International shipping

Need Help? Speak with our HVAC and tools experts. Call or text (786) 239-7444.


Fieldpiece Combustion Analyzer features a high contrast, 5.5” touchscreen display; the CAT45 combustion gas analyzer makes it easy to view measurements, whether your job site is a dimly lit basement or bright rooftop. You can also save your customer data with dedicated fields for client information. If you require advanced diagnoses, a live trend report is available with O2, CO, and COreadings.

With a four-year sensor warranty, the CAT45 combustion gas analyzer features a patent-pending SensorVault ™ technology that protects and prolongs the sensor life. We also maximize uptime on the job with field-replaceable sensors.

The CAT45 can tackle any job site conditions with its durable construction and rubberized casing. The magnetic back lets you work hands-free, and the padded hardline carrying case includes multiple inserts for accessories.

Seamlessly connect to Fieldpiece Job Link® System App to view trends, draft pressure, and customer details, with an industry-leading 1000’ wireless range. A wireless printer is also available for job sites that require documentation printouts.

  • Accurately measure O2, CO, CO2, draft pressure
  • Lower cost of ownership with four-year sensor warranty
  • Large 5.5” touchscreen display with one-touch power on
  • Field-replaceable sensors to maximize uptime
  • Patent pending SensorVault™ technology prolongs sensor life
  • Connect with Job Link® System App, industry-leading 1000’ wireless range
Display : Touchscreen TFT LCD (5.5 in diagonal)
Probe Size : 10.7 in (272 mm) length, 0.32 in (8.0 mm) diameter
Accuracy : Stated accuracies at 23°C ±5°C, <75% R.H.
Battery Type : 3.7 VDC (nominal), 6400mAh, non-replaceable
Battery Life : 7 hours typical (pump running 80% of the time)
Charge Time : < 7 hours typical @ 5V/2A DC power (power adapter not included)
Charging Port : USB-C (Usable when connected to power)
Memory : 1000 jobs (approx.)
Warm Up Time : 45 seconds (90 seconds near freezing)
Operating Environment : 14°F to 104°F (-10°C to 40°C); < 75% RH (non-condensing)
Storage Temperature : -4°F to 140°F (-20°C to 60°C); < 80% RH
Weight : 39.5 oz (1120 g) with probe
Wireless Range : 1000 feet (305 meters)
Fuel Types : Natural Gas, Propane (LPG), Oil #2 (Light), Oil #6 (Heavy), Biofuel, Coal, Coal Town Gas, Coking Oven Gas, KOKS, Custom (x3)
Manufacturer Warranty : 1 year (4 years sensors only)
Job Link System Minimum : BLE 4.0 devices running iOS 7.1 or Android™ Kitkat 4.4

No product questions available.

  • No product manuals available.

No product videos available.

  • (1) CAT45 Combustion Analyzer (including probe)
  • (1) Carrying case – ANC85
  • (2) Cones – RCONE3
  • (1) Filters – RFC10
  • (1) USB cable
  • (1) Manual
CAT45 – Combustion Analyzer
Fieldpiece Combustion Analyzer CAT45