The First Alert CO710 carbon monoxide detector includes a long life sealed lithium battery to power the alarm for a full 10 years without replacing the battery. The First Alert CO710 carbon monoxide ...
The First Alert SMCO210 (Battery) is part of the Smoke & Carbon Monoxide Detectors test program at Consumer Reports. In our lab tests, Combination Smoke & Carbon Monoxide Detectors models like the ...
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