Kane & UEI Test Instruments
Wireless Carbon Monoxide Detector
The COA2 is a portable wireless carbon monoxide detector for ambient CO monitoring during HVAC, gas, combustion and maintenance work.
Technical snapshot
Key COA2 measurement specs.
A compact overview of the core CO detection range, wireless features and field-use functions for professional service work.Ambient CO monitoring
Monitor carbon monoxide levels while working around fuel-burning equipment.
The COA2 gives technicians a portable way to detect ambient carbon monoxide during service, maintenance and safety checks. It can be used as a standalone detector or connected wirelessly to a smart device for live readings and app-based monitoring.
- Wireless carbon monoxide detector for professional trade use.
- Detects ambient CO from 1 to 999 ppm.
- 1 ppm display resolution for clear readings.
- Wireless connectivity with free iOS® and Android™ app.
- CO sensor self-test, audible alert and 3-colour warning alert.
- Max capture, Hold, auto zero on power-up, backlight, low battery indicator and belt clip.
What it helps check
Use the COA2 when the work area needs portable ambient CO awareness. It is useful around heating appliances and mechanical spaces where CO exposure risk should be monitored during service work.
- Ambient CO levels around boilers, furnaces and heaters.
- Plant rooms, mechanical rooms and enclosed service areas.
- Live readings and maximum CO levels during diagnostic work.
COA2 field guide
Keep this section focused on the work the detector actually does.
Where it earns its keep
Use it when CO exposure risk needs to be watched during service work.
- Heating and combustion equipment checks around boilers, furnaces and heaters.
- Plant rooms, mechanical rooms and enclosed service areas where combustion products may be present.
- Fault-finding or maintenance tasks where a live ambient CO reading is more useful than a one-off spot check.
App or standalone
Use the workflow that suits the job.
Pair it with the app when the detector needs to sit near the risk area while the technician views readings remotely. Use it standalone when the display, audible alert, visual warning, Max and Hold functions are enough.
Important limits
Ambient CO detection only.
- Do not use it for in-flue measurements.
- Do not place the detector in flue gas or warm air streams.
- Treat elevated CO readings seriously and follow site safety procedures.
Related test instruments
Linked Kane & UEI products from Omni Tools.
Internal Omni Tools links only — related HVAC/R, electrical and diagnostic test instruments.Useful information & documents
COA2 resources.
Omni Tools product and range links, plus official UEI COA2 documents.Omni Tools links
Manufacturer documents
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