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The COA1 Carbon Monoxide Adapter plugs into compatible iOS or Android mobile device to measure carbon monoxide levels. Great for first responders and initial checks. Quick and easy-to-see warnings. Available on iOS and Android platforms.

• Detect CO readings directly from your smartphone
• Free COCHECKER app graphs, logs and emails results, and displays visual warnings of CO danger levels, based on the CO ppm readings
• Reads CO up to 999ppm
• Detects CO to 1ppm
• Extended 3.5 mm jack to support devices with oversized covers
• Calibration is available at UEi re-certification centers