Q2 Portable O2 / CO2 Analyzer for MAP testing

The Q2 is a Portable Oxygen and CO2 analyzer, used for research or package testing.

The Q2 is a portable headspace analyzer for measurement of O2 and CO2 levels in gas flushed MAP packages (such as coffee or meat products). Alternately, the Q2 can be used for portable O2 and CO2 measurements for research applications (such as cell culture incubators).

It weighs only 2 lbs, and comes with rechargeable batteries, sample probe, charger, and accessories to begin sampling. There is also an optional hard carry case for easy portability and protection.


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SKU: Q2 Categories: , ,
Lead Time: 2-5 business days


The Model Q2 incorporates the latest fast response O2 and CO2 sensors, which allows results to be obtained in 15 seconds for rapid spot checks. The oxygen sensor is also rated for 5 years of life, which is far better than the competition. Other analyzers utilize cheap oxygen sensors which may last 18-24 months.


Our standard sample probe assembly for food package testing connects to the Model Q2 – this sample probe is interchangeable with all of our other analyzers, and is a durable double tubed, single piece.

The probe is tipped with a liquid blocking filter and tri-beveled, non coring needle. The filter will block liquid and particle intake into the analyzer, and the needle is specially designed to prevent “coring”, or plugging, and is incredibly tough.


On the side of the instrument there are five adjusting potentiometers – you can adjust the oxygen span, pump time, CO2 span, and other parameters on the fly. There’s no need to reboot and no need to warmup – it’s as easy as it gets.


The infrared CO2 sensor utilizes NDIR technology for maximum stability, and has a theoretically unlimited lifespan. Its ultra low power consumption allows for 10-14 hours of runtime for the analyzer before recharging is required.

It has no moving parts, no consumables, and is housed in a compact optical cell. The sensor responds to CO2 only.

The electrochemical O2 sensor life is typically 4-5 years, unlike other analyzers with an electrochemical sensor that last 1-2 years. When required, replacement is easy and inexpensive.

Both sensors are unaffected by high levels of background gases such as nitrogen.


The Model Q2 is backed up with a two year warranty, twice the industry standard.

Our service team responds quickly to the repair needs of our customers.

Carbon Dioxide Sensor Type Solid-state Infrared
Accuracy - Carbon Dioxide ± 1% of reading, or ± 0.2% CO2 (whichever is greater)
CO2 Minimum Detection Limit 0.1% (0-100% range) or 0.01% (0-20% range)
CO2 Calibration Controls Potentiometer SPAN adjustment for CO2 and zero adjusment
CO2 Calibration Frequency Every 12 months; calibration gas recommended.
Expected Lifetime (oxygen) 4-5 years
Oxygen Range 0.00 to 100%
Oxygen Sensitivity 0.1% O2
O2 Resolution 0.1% O2
Analog Output Not Available
Accuracy : +/- 1% of reading; +/- 0.1% absolute below 10.0%
Drift less than 0.4% per year
Oxygen Sensor Type Proprietary electrochemical cell, expected lifetime 4-5 years
Response Time 15 seconds to T95
O2 Sensor Lifetime 4-5 Years
O2 Sensor Body ABS Resin
Sample Connection Sample Probe
Sample Method Pump
Sample Pump Miniature diaphragm type with ~5cc/sec flow
Pump Timing 2-12 second adjustable pump time, potentiometer on side of analyzer
Minimum Sample Required 20cc
Sampling Assembly Probe with female luer connection for filter and needle, low volume PTFE tubing
Oxygen Calibration Controls SPAN adjustment, zero adjustment
Instrument Calibration Calibrates with room air; coarse SPAN adjustment on back; fine span adjustment on side; ZERO adjustment on side (calibration gas recommended for CO2)
Exhaust port Vents to air
Power Supply Four "AA" NiMH rechargeable batteries; auto shut-off after 45 minutes idle. 100-240V (50-60Hz) Charger included, with US or international interchangeable plug adapter (upon request)
Backup Power Four "AA" alkaline batteries (not included)
Battery Operation Included
Input Voltage 100-240V, 50-60Hz
Battery Life 8-12 hours before recharging
Measures: O2, CO2 O2, CO2
Form Factor Portable
Size 8 x 4 x 1.8 in. (200 x 100 x 40 mm)
Weight 1 lb. (450 gms)
Warranty 2 years, parts and labor
Standards CE, RoHS
Included Consumables 200 foam septas, 2 luer fit needles, 2 particulate filters, 2 liquid block filters
Included Documentation Owners manual (includes operating instructions with detailed calibration instructions, calibration certficate, precautions), NIST calibration certificate
Origin of Goods Our products are manufactured in the U.S.A.
Products by Gas Oxygen and CO2
Products by Applications Gas Flow / Process Analyzers
  • Built-in pump, sample probe.
  • Starter pack of 200 foam septas
  • 2 needles.
  • 2 particulate filters,
  • 2 moisture blocking filters,
  • Power supply / charger (for analyzers with optional internal battery) – (International compatible 100-240V)

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