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UEi COA2 Wireless Carbon Monoxide Detector

by UEi Test Instruments

Last updated Mar 29, 2026 · 1 revision

Wireless-enabled portable ambient CO detector with 3-color LED, audible alarm at 35 ppm, and 5-year sensor life for HVAC safety checks.

Highlights

Capabilities

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About This Product

The UEi COA2 is a wireless portable carbon monoxide detector designed for ambient CO safety monitoring during HVAC service calls. Its 3-color LED provides instant visual assessment of CO concentration levels, with an audible alarm triggering at 35 ppm. The CO sensor features a 5-year expected lifespan with 1 ppm accuracy and built-in self-test capability. Compact and belt-clip ready, it is designed for ambient air testing around heating equipment, not for flue gas analysis.

Capabilities

How this product is delivered and what's included out of the box.

Mobile app
Available
Free trial
No
Free tier
No
Public API
No
Deployment
On Premise

FSH Score Breakdown

Ease of Use
6.5
Features
4.5
Support
5.0
Value
5.5
Integrations
4.0
AI Capabilities
1.5

Customer Reviews

Features

7 features confirmed across 2categories· Showing confirmed capabilities only

Hardware Features5features

Auto ShutoffAuto power offCO Sensor Self TestAdjustable Alarm Setpoints and LatchingAutomatic ZeroingData Hold

Equipment & Asset Management2features

AlertsLow battery indicatorAir Quality MonitoringCO sensor self-test

Pricing

Model
Custom
Starting at
Contact for pricing
Notes
NIST calibration version (COA2-N) priced at $317.28. Standard model approximately $250-270 depending on retailer.
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