Monoxor Plus

Monoxor® Plus

The Monoxor® Plus offers service technicians the easiest and most affordable
way to locate CO in ambient air as well as stack gases.

Bacharach's Monoxor® Plus is a continuous sampling instrument that instantly and accurately measures levels of CO between
0 and 2,000 ppm in 1 ppm increments. In addition, the Monoxor® Plus is supplied with a 6’ hose and stainless steel probe assembly
to sample CO found in flue gases of residential furnaces, combustion appliances, commercial and industrial boilers. It can store up to
10 complete records in memory and an optional wireless IrDA printer provides a permanent record of the detected CO level.
Its innovative LCD display can toggle between a real-time CO trending graph and numerical data.


  • CO safety checks on combustion stack gas and ambient air levels
  • Analyzing indoor air quality and safety
  • Furnace and boiler servicing or replacement

Features & Benefits

  • Fast, accurate measurement of CO (0-2,000 ppm in 1 ppm increments) as well as ambient° and
    flue gas temperatures* (with optional thermocouples) and differential temperature capability
  • Default CO alarm setting with user-changeable set-point Measures in increments of 1 ppm
  • 6' hose and probe assembly for flue gas testing
  • Real-time display with trending graph, CO ambient test, self-diagnostics, calibration reminders and 10-record internal memory
  • Optional magnetic IrDA printer for printing test results
  • Optional inline NOx filter


  • Measurement Ranges:
    • Range: 0-2,000 ppm (in 1 ppm increments)
    • Flue Gas Temperature: -4° F to 1,202° F (-20° C to 650° C)
      - requires optional probe 0019-7111
  • Detection Principle: Electrochemical Sensor
  • Accuracy(CO): ±5% of reading or ±10 ppm (whichever is greater)
  • Operating Temp.: 23°F - 113°F (5°C - 45°C) | Probe: 1,000°F (538°C)
  • Operating Humidity: 15 - 90% RH (non-condensing)
  • Battery Life: Minimum of 20 hours typical
  • Display: High-contrast monochrome graphic LCD display w/backlight
  • Power: 4 'AA' Alkaline Batteries
  • Weight: 16 oz. with batteries (0.45 kg)
  • Dimensions: 8.0”h x 3.6”w x 2.3”d (20.3 cm x 9.1 cm x 5.8 cm)
  • Run Time: Minimum of 20 hours typical battery life
  • Warranty: 2 years, including sensor
  • Approvals: EN 50270 (CE mark)
  • Display Languages: English, French and Spanish

Ordering Information

Part NumberDescription
0019-8117Monoxor® Plus CO Analyzer, (includes 6 ft. probe/hose assembly and water trap/filter, 4 AA batteries, hard-carry case and instruction manual)
0019-8118Monoxor® Plus CO Analyzer Kit (instrument comes with 6 ft. probe/hose assembly and water trap/filter, wireless IrDA magnetic printer, 8 AA batteries, USB cable, PC software, hard-carry case and instruction manual)
0024-1400Wireless IrDA Magnetic Printer with Disposable Batteries
0024-1310Printer paper, 5 rolls
0024-1461Protective Boot with Magnet
0024-1505NOx Filter Kit
0024-1467B-Smart® pre-calibrated CO sensor
0024-7265CO sensor (uncalibrated)
0019-7110Probe and hose assembly; 6 ft. (without thermocouple)
0019-7111* Probe and hose assembly; 6 ft. (with thermocouple for flue gas temp.)
0019-3265Replacement Water Trap/Filter Assembly (for Probe Assembly)
0051-1994CO gas cylinder, 100 ppm
0024-0492CO gas cylinder, 500 ppm
0024-7059Calibration Kit (without gas)
0104-1798° Thermocouple 1 in. (for ambient air temperature)
0104-1797Thermocouple 10 ft.

Oxor® III:

  • Oxor® III - Part No. 19-8112 Oxor III
    • includes 4AA batteries, probe and hose assembly with internal filter and hard carrying case
  • Oxor® III kit- Part No. 19-8113
    • includes 4AA batteries, probe and hose assembly and a hard carrying case, plus an IRDA printer