Q20 Series Portable Analyzer - O2 and/or CO2
- Quantek Instruments - Q20, Q21, Q22
- Intelligent
- Durable
- Lightweight
- 32-bit microprocessor
- On-board data storage
- Available for O2, CO2, or both
Test O2 and/or CO2 levels in packages, processes, and more!
The Q20 series offers the advantage of being incredibly lightweight and portable. With a battery life of 12+ hours, the Q20 series is used in hundreds of applications including container spot checks, food packages, bio enclosures/incubators, and many more!
The Q20 series of analyzers features a color display, menu driven setup and calibration, a built-in programable sample pump, and on-board data collection. Everything you need to start sampling is included. The analyzer ships in a TSA-approved protective carry case, and is backed by our 2-year warranty.

model: Q20 ( Oxygen only )

model: Q21 ( CO2 only )

model: Q22 ( Oxygen and CO2 )
The latest fast response O2 and CO2 sensors
The latest fast response O2 and CO2 sensors, which allows results to be obtained in 15-25 seconds for rapid spot checks. The oxygen sensor is 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. When required, replacement is easy and inexpensive.
The sensor is unaffected by high levels of background gases such as nitrogen.
The CO2 sensor design has a low internal volume and requires only a low sample flow of about 5 to 1000 cc/min. Our market leading CO2 sensor uses the latest in dual-wavelength NDIR measurement principles, reducing drift and allowing for a single point calibration. While the sample introduced should be clean and dry (non-condensing),a PTFE filter can be attached to the tip of the sample probe to protect from moisture and particulates.
Q21 uses a solid-state infrared sensor which has no moving parts, a compact optical cell, and microprocessor-based calibration factors using a 6th order polynomial equation to linearize the full range measurement up to 100%. Infrared CO2 measurements are inherently non-linear, especially over a high range of concentrations. The math algorithm used in the Q21 yields more accurate measurements over a much wider range of concentrations than other methods.
Oxygen Range | 0.00 to 100% |
Oxygen Sensitivity | 0.01% |
O2 Resolution | 0.01% |
Analog Output | 0-5V |
Resolution | 0.01% |
Accuracy | +/- 1% of the reading or 0.1%, whichever is greater |
Drift | less than 0.4% per year |
Oxygen Sensor Type | Proprietary Electochemical |
Response Time | 20 seconds to T95 |
O2 Sensor Lifetime | 4-5 Years |
O2 Sensor Body | ABS Resin |
Sample Connection | Sample Probe |
Sample Method | Pump |
Sample Pump | Internal, draws ~5cc/sec |
Pump Timing | 2-20 seconds, continuous, or cycling on/off, programmable |
Minimum Sample Required | 15cc |
Sampling Assembly | Probe with luer connection for filter and tri-beveled needle |
Oxygen Calibration Controls | Digital Keypad Adjustment |
Instrument Calibration | EasyCal calibration |
Exhaust port | Vents to air |
Power Supply | 100 to 240 VAC, internationally compatibile |
Battery Operation | Included, internal shrink wrapped NiMH battery pack |
Input Voltage | 100-240V, 50-60Hz |
Battery Life | 12-16 hour runtime |
Measures | O2 |
Form Factor | Portable |
Size | 8in x 7in x 2in (203 x 51 x 178 mm) |
Weight | 2 lbs (0.9kg) |
Warranty | 2 years, parts and labor |
Standards | CE, RoHS |
Included Consumables | 400 foam seal pads, 10 luer fit needles, 10 filters |
Included Documentation | Owner’s manual, NIST traceable calibration certificate |
Origin of Goods | Made in the U.S.A. |
Carbon Dioxide Sensor Type | Solid-state Infrared |
Accuracy - Carbon Dioxide | ± 1% of reading, or ± 0.1% CO2 (whichever is greater) |
CO2 Minimum Detection Limit | 0.1% (0-50% or 0-100% range) or 0.01% (0-10% or 0-20% range) |
CO2 Calibration Controls | Digital Keypad |
CO2 Calibration Frequency | Every 12 months; calibration gas recommended |
Expected Lifetime (oxygen) | 4-5 years |
Analog Output | Not Available |
Accuracy | +/- 0.1% (from 0-20%),+/- 0.2% (from 20% to 50%),+/- 0.5% (from 50% to 100%) |
Drift | less than 0.4% per year |
Oxygen Sensor Type | Proprietary Electochemical |
Response Time | 20 seconds to T95 |
O2 Sensor Body | Anodized aluminum |
Sample Connection | Sample Probe |
Sample Method | Pump |
Sample Pump | Internal, draws ~5cc/sec, with 2-12 second adjustable timer (on side of unit) |
Pump Timing | 2-20 seconds, continuous, or cycling on/off, programmable |
Minimum Sample Required | 10cc |
Sampling Assembly | Probe with male luer connection for side-port needle, PTFE tubing |
Oxygen Calibration Controls | Digital Keypad Adjustment |
Instrument Calibration | EasyCal calibration |
Exhaust port | Vents to air |
Power Supply | 100 to 240 VAC, internationally compatibile |
Battery Operation | Included, internal shrink wrapped NiMH battery pack |
Input Voltage | 100-240V, 50-60Hz |
Battery Life | 12-16 hour runtime |
Measures: O2, CO2 | CO2 |
Form Factor | Portable |
Size | 8in x 7in x 2in (203 x 51 x 178 mm) |
Weight | 2 lbs (0.9kg) |
Warranty | 2 years, parts and labor |
Standards | CE, RoHS |
Included Consumables | Varies (depending on application) |
Included Documentation | Owners manual (includes operating instructions with detailed calibration instructions, calibration certficate, precautions),NIST calibration certificate |
Origin of Goods | Made in the U.S.A. |
Carbon Dioxide Sensor Type | Solid-state Infrared |
Accuracy - Carbon Dioxide | ± 1% of reading, or ± 0.1% CO2 (whichever is greater) |
CO2 Minimum Detection Limit | 0.1% (0-50% or 0-100% range) or 0.01% (0-10% or 0-20% range) |
CO2 Calibration Controls | Digital Keypad |
CO2 Calibration Frequency | Every 12 months; calibration gas recommended |
Expected Lifetime (oxygen) | 4-5 years |
Oxygen Range | 0.00 to 100% |
Oxygen Sensitivity | 0.01% |
O2 Resolution | 0.01% |
Analog Output | Not Available |
Resolution | 0.01% or 0.1% (user selectable) |
Accuracy | +/- 0.1% (from 0-20%),+/- 0.2% (from 20% to 50%),+/- 0.5% (from 50% to 100%) |
Drift | less than 0.4% per year |
Oxygen Sensor Type | Proprietary Electochemical |
Response Time | 20 seconds to T95 |
O2 Sensor Lifetime | 4-5 Years |
O2 Sensor Body | Anodized aluminum (CO2) and ABS Resin (O2) |
Sample Connection | Sample Probe |
Sample Method | Pump |
Sample Pump | Internal, draws ~5cc/sec, with 2-12 second adjustable timer (on side of unit) |
Pump Timing | 2-20 seconds, continuous, or cycling on/off, programmable |
Minimum Sample Required | 15cc |
Sampling Assembly | Probe with male luer connection for side-port needle, PTFE tubing |
Oxygen Calibration Controls | Digital Keypad Adjustment |
Instrument Calibration | EasyCal calibration |
Exhaust port | Vents to air |
Power Supply | 100 to 240 VAC, internationally compatibile |
Battery Operation | Included, internal shrink wrapped NiMH battery pack |
Input Voltage | 100-240V, 50-60Hz |
Battery Life | 12-16 hour runtime |
Measures | O2, CO2 |
Form Factor | Portable |
Size | 8in x 7in x 2in (203 x 51 x 178 mm) |
Weight | 2 lbs (0.9kg) |
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 | Made in the U.S.A. |
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