FEATURES
• CO reading direct on your device
• Reads CO up to 999 ppm
• Detects CO to 1 ppm
• Use with compatible iOS
®
or Android™ smart devices
• Free App displays 3 visual danger levels
• App allows logging and emailing capabilities
• Low Battery Indicator
GENERAL SPECIFICATIONS
• Operating Temperature:
32˚ to 104˚F (0˚ to 40˚C)
• Dimensions:
2.4 x 1.17 x 1.02” (61 x 30 x 26mm)
• Item Weight:
0.05oz
• Battery Type:
CR2032
• Accuracy:
± (3% + 1 ppm)
• App Compatibility:
iOS
®
; iPhone 4X and up running iOS7 and higher iPhone 7
(requires use of Lightning to 3.5mm headphone jack adapter)
Android™; Galaxy S4, Nexus 5, HTC One running Android 4.4 or higher
NOTE:
Requires compatible mobile device and FREE downloadable App “
CoChecker
”.
SYMBOLS
Hold/Capture Value
Maximum measured value
displayed
Warning or Caution
IMPORTANT SAFETY WARNINGS
WARNING
Read entire Safety Notes section regarding potential hazard and proper instructions before
using this tester. In this manual the word “
WARNING
” is used to indicate conditions
or actions that may pose physical hazards to the user. The word “
CAUTION
” is used to
indicate conditions or actions that may damage this instrument.
WARNING
• To ensure safe operation and service of the tester, follow these instructions. Failure to
observe these warnings can result in severe injury or death.
• This meter is designed for trade professionals who are familiar with the hazards of their
trade. Observe all recommended safety procedures that include use of personal protective
equipment.
• Carbon monoxide is life threatening even at relatively low concentrations. Be sure you
understand the risks before investigating potential leaks.
• Do not use the tester if it appears damaged.
• Always adhere to national and local safety codes.
• This COA1 is specified to read Carbon Monoxide from 1-999ppm. The app may continue
to read above this threshold. Professional safety precautions are recommended above
35ppm.
• Threshold safety levels are set to industry standards. By customizing these levels to
higher COppm thresholds, users risk personal safety. These setting are saved and used
after exiting and relaunching the App. To reset back to industry standards set the
levels to: Green ≤
10
Orange ≤
35
Red.
CAUTION
• The COA1 is designed for ambient testing only. DO NOT place the instrument in flue gas
or warm air streams.
• The COA1 is not designed for in-flue detection. Readings more than 999 ppm will damage
the sensor in the COA1, even if readings continue above the 999ppm range.
• Ensure that the sensor vent at the top of the instrument is free from obstruction.
• When zeroing the COA1, the adapter should be in fresh air. The COA1 uses an
electrochemical sensor, which are subject to long-term drift pending use and CO levels
during use. Calibration services are available at UEi Recertification Centers. Call or visit
us online for more information.
NOTE:
A quick instrument check can be performed by the smoke from a blown out match. Let
smoke enter the
vent
. This will cause the indicated CO level to increase.
