Hand held 
Oxygen and Carbon Dioxide analyzer
for Modified Atmosphere Packaging

The Checkpoint is the only battery operated oxygen and carbon dioxide monitor for use with modified atmosphere packages and similar applications


Hand held oxygen monitor

Features of the PBI Checkpoint combined oxygen and carbon dioxide analyzer

  • Most Popular - thousands in use worldwide!
  • 0-100% oxygen and carbon dioxide in a handheld meter
  • Self contained battery operated instrument complete with, sampling needle, filter and built in sample pump.
  • Sample syringe stores safely inside the instrument body.
  • Accurate portable easy to use 
  • Memory for 10 measurements
  • Power saver shutdown feature
  • Bright red LED display
  • Rugged  anodized aluminum case
Related products
Oxygen and CO2 headspace analyzers
See also: new Checkpoint 2 with data logging
Oxygen / Carbon Dioxide monitor
Portable and battery operated the "Checkpoint is convenient instrument for checking oxygen and carbon dioxide concentrations in modified atmosphere packages. The instrument samples the oxygen headspace automatically, with the built in pump, when the sample button is pressed. The instrument is factory calibrated with certified gases and can be re-calibrated from atmospheric oxygen by the user. Periodic calibration with a range of oxygen concentrations is recommended. ( This service is available from Topac )

General Specification of Checkpoint headspace analyzer
Sample Volume  15 ml
Sensor Lifetime ~ 2 years normal use
Batteries 4 x AA
or optional rechargeable NiMH batteries
Power saver Auto off after 1 minutes idle time
Weight 500 gms
Calibration Semi automatic calibration from air
Dimensions 74 x 63 x 135 mm

Specifications for the Oxygen sensor
Range 0 - 100% Oxygen
Resolution 0.1%
Sensor electrochemical type
Accuracy Oxygen
Sensor Only
2% of the reading in the range 5% to 100%
0.1% absolute in the range 0 - 5% 
Accuracy for Oxygen
when Combined with CO2
2% of the reading in the range 10% to 100%
0.2% absolute in the range 0 - 10% 

Specifications for the Carbon Dioxide sensor
Range 0 - 100% Carbon Dioxide
Resolution 0.1%
Sensor Infra Red
Accuracy Oxygen
Sensor Only
3% absolute in the range 20% to 100%
2% absolute in the range 0 - 20% 

Ordering Information
Topac Part Number Description Price  
PB 200547 Oxygen only standard batteries call
PB 200699 Oxygen only rechargeable batteries call
PB 200548 Combined Oxygen and Carbon Dioxide standard batteries  call
PB 200700 Combined Oxygen and Carbon Dioxide rechargeable batteries  call
Order Supplier online    

Topac Inc. 231 CJC Highway, Suite 103 Cohasset MA 02025 USA
Tel: 781 740 8778 Fax: 781 740 8779

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