Bacharach Inc. began operations in 1909 in Pittsburgh, Pennsylvania, as a family-owned manufacturing business chartered by Hermann Bacharach. The Company’s initial focus was on the development and production of instruments that measure air flow and gas sensing for combustion analysis.

Today, the business has expanded to include a complete line of products that detect, measure and monitor gases with portable and fixed (stationary) instruments. Bacharach’s history is rich with inventions, education, R&D initiatives, patented technologies and corporate acquisitions that have contributed to its current position as a respected industry leader. The timeline below shows the forward progress of the Bacharach history.

 Monoxor® PlusInTech®Insight® PlusPCA® 400ECA 450
ApplicationsResidential Furnaces,
Safety Inspection
Residential FurnacesResidential FurnacesCommercial Boilers,
Engines, Compressors
Industrial Boilers,
Engines, Compressors
TypeHandheldHandheldHandheldHandheldPortable
Sensors12247
DRAFT±40 in H2O
(±100 mbar)
±72 in H2O
(±179 mbar)
±27.7 in H2O
(±69 mbar)
CO0 – 2,000 ppm0 – 2,000 ppm0 – 4,000 ppm0 – 10,000 ppm0 – 4,000 ppm
CO High0 – 40,000 ppm4,001 – 80,000 ppm
O20 – 20.9%0 – 20.9%0 – 20.9%0 – 20.9%
NO0 – 3,000 ppm0 – 3,500 ppm
NO20 – 500 ppm0 – 500 ppm
SO20 – 5,000 ppm0 – 4,000 ppm
Combustibles0 – 5% volume
Mobile AppData TransferData TransferData Transfer,
Remote Operation
Pre-Calibrated Sensors
Built-in Furnace Tuning Software
Memory Locations10101005001,000

Safety Compliance

Bacharach’s range of safety compliance monitors provides peace-of-mind that you’re meeting any health-safety codes, including:

  • OSHA
  • ASHRAE 15
  • EN 378
  • F-GAS

Refrigerant Leak Reduction

Our refrigerant leak reduction equipment is designed to find small leaks early, allowing you to repair them before they become big problems:

  • 1 ppm MDL
  • NDIR Sensor Technology
  • Fast Sample Times
  • Huge Gas Library

Occupied Spaces

Bacharach provides advanced refrigerant monitoring options for VRF and VRV systems, allowing for the early isolation of leaks:

  • Find Leaks Early
  • Isolate Affected Rooms
  • Modbus Communications
  • Simple Installation / Maintenance

Refrigerant Leak Detection

Bacharach offers a range of portable leak detectors capable of finding leaks of any common refrigerants, including:

  • HFCs
  • CFCs
  • HCFCs
  • Commercial HVAC

Combustible Gas Leak Detection

Bacharach’s portable, handheld combustible gas leak detectors allow for convenient and easy inspection and leak isolation of any combustible gas, including:

  • Methane
  • Butane
  • Propane
  • …and many more

Ultrasonic Leak Detection and Inspection

Bacharach’s ultrasonic-based leak detectors support a variety of applications, including:

  • Combustible and Refrigerant Gases
  • Compressed Air and Pneumatic Systems
  • Inert Gases (CO2, Nitrogen, Helium, etc.)
  • Steam Trap Leak Detection
  • Condensate Flow
  • Thermal Expansion Valves (TXV), Solenoids
  • Mechanical Problems (Bearings, Wear)
  • Electrical Arcing
  • Sealed Enclosures, Tanks, and Rooms
  • Condition-Based Monitoring