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First Alert OneLink CO511B Carbon Monoxide Detector
OneLink CO511B
This model was tested by our experts.
Description
This model was tested by our experts.

Ratings Scorecard

Test Results

Low CO levels

Low CO levels

Low CO levels rates a model's response to CO of 150 ppm.

 /  5
Display/voice

Display/voice

Display/voice rates the accuracy of the CO level either displayed digitally or conveyed by voice message.

 /  5
High CO levels

High CO levels

High CO levels rates a model's response to CO of 300 parts per million.

 /  5

About

The First Alert OneLink CO511B is part of the Smoke & Carbon Monoxide Detectors test program at Consumer Reports. In our lab tests, Carbon Monoxide Detectors models like the OneLink CO511B are rated on multiple criteria, such as those listed below.

Low CO levels Low CO levels rates a model's response to CO of 150 ppm.

Display/voice Display/voice rates the accuracy of the CO level either displayed digitally or conveyed by voice message.

High CO levels High CO levels rates a model's response to CO of 300 parts per million.

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