InTech Combustion Analyzer

Handheld Combustion Analyzer for Residential Applications

Bacharach’s InTech® is the perfect tool for entry-level residential HVAC technicians providing readings for O2, CO, CO2, Combustion Efficiency and Temperature. The InTech® is available with pre-calibrated gas sensors to minimize downtime and maintenance costs. The Combustion mobile app (available for Android & iOS) allows users to create and send customizable combustion reports on-site.

  • All-in-one instrument makes combustion tuning fast and simple with readings for O2, CO, CO2, combustion efficiency, and temperature
  • Combustion App allows users to quickly create custom reports with comments and send via email (available for Android & iOS)
  • Automatic sensor protection helps technicians protect the analyzer in harsh environments, extending sensor life
  • Ambient CO monitoring function allows technicians to check for dangerous CO levels
  • Quick and easy sensor replacement in the field reduces downtime and doesn’t require calibration gas
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The InTech® combustion analyzer is the perfect tool for entry-level and residential technicians who need to ensure safe operating conditions and determine combustion efficiency. The InTech® features 6 fuels in the North American configuration to suit a wide variety of applications.

The InTech® includes sensors for O2 and CO, with an option for an external NOx filter. The CO sensor can be replaced in the field without down time using pre-calibrated sensors. The InTech® calculates values like efficiency, CO2 and CO air-free to help monitor combustion processes effectively and accurately.

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  • Product Specifications
  • Technical Library
  • Part Numbers
  • Accessories and Parts
  • Gas List
Sensors: Up to 2
Measuring Range: 0 to 20.9% 0 to 2000 ppm
Stack Temperature: -4 to 1202 °F (-20 to 650 °C)
User Interface: Monochrome LCD w/Backlight
Display Size: 2.7 in. (69 mm)
Power: 4 × Alkaline Batteries
Run Time: 15 Hours (Alkaline Batteries)
Warm-Up Time: 30 to 60 seconds
Digital Communications: USB 2.0 (mini-B), IrDA
Ambient Temperature: 23 to 113 °F (-5 to 45 °C)
Humidity: 15 to 90% RH (non-condensing)
Altitude: 1 ATM ± 10%
Product Dimensions (L×W×H): 8" × 3.6" × 2.3" (20.3 × 9.1 × 5.8 cm)
Product Weight: 1 lb. (0.45 kg) including batteries
Fuel Equations: Natural gas, oil 2/6, kerosene, propane, butane, LPG, B5, KOKS, LEG, biofuel
Approvals: CE, EN 50379-1 , EN 50379-3
Internal Memory: 10 Records
Warranty: 2 Years (including sensors)
Printer: IrDA + Bluetooth Printer (Optional)
Country of Origin: United States
Description North American Part Number Siegert (European) Part Number
Fyrite® InTech® O2 only with soft carrying case 0024-8510
Fyrite® InTech® with soft carrying case 0024-8511 0024-8513
Fyrite® InTech® with protective rubber boot, spare filters (qty. 3), reporting kit and hard carrying case 0024-8512 0024-8514
Fyrite® InTech® with protective rubber boot and hard carrying case 0024-8523


Soft Case Hard Case Rubber Boot Reporting Kit Spare Filters North American Part Number Siegert (European) Part Number
0024-8511 0024-8513
0024-8512 0024-8514

All kits include:

  • Probe with 12 in. sample tube (approximately 6 ft. total length), water trap and particulate filter
  • 4x AA batteries
  • User manual

Reporting kit adds:

  • IrDA wireless printer
  • USB cable
  • Fyrite® User Software
  • 4 additional AA batteries

Generate Custom Reports with the Combustion App

Bacharach’s Combustion app, the companion app to Bacharach combustion analyzers, provides technicians the ability to generate and send customizable combustion reports from their smartphone / tablet.

Features of the Combustion App:

  • QR Code Scanner (Intech & Insight Plus only): Scan a QR code generated on the analyzer display screen for immediate creation and transmission of combustion reports
  • Wireless Bluetooth Connectivity (PCA 400 only): View real-time combustion data from your device, simultaneously save data to the mobile app and to the analyzer memory, and remotely start / stop the analyzer sampling pump
  • Set up customer profiles with facility and equipment information
  • Save and view records of test data
  • Generate reports in PDF, CSV, or XML format using saved records
  • Send or share a report file as an email attachment or to a cloud storage service
  • Include up to 10 data records in a single report
  • Insert comments for each data record in a report

Description Part Number
Sensor Exchange Program (2 years, 1 Sensor every 12 months)
CO sensor (0 – 2,000 ppm)
Sensor Exchange Program (2 years, 1 Sensor every 6 months)
CO sensor (0 – 2,000 ppm)
Sensor Exchange Program (3 years, 1 Sensor every 9 months)
CO sensor (0 – 2,000 ppm)
CO sensor (0 – 2,000 ppm) uncalibrated 0024-7265
CO sensor (0 – 2,000 ppm) pre-calibrated 0024-1467
NOx filter kit 0024-1505
Calibration Kit (includes variable-flow regulator, fittings and tubing) 0024-7059
O2 uncalibrated sensor (2 year) 0024-0788
IRDA Printer w/ 4x AA batteries 0024-1400
Reporting kit (includes IrDA printer, USB cable, Fyrite® User Software and 4x AA batteries) 0024-1492
Flue plugs, 5/16 in. metal (package of 50) 0024-8557
Printer paper (5 rolls) 0024-1310
Probe filters (package of 3) 0007-1644
CO appliance test kit 0024-8555