Review on Siterwell CO Detector Alarm with Test and Silence Function - 7-Year Battery Operated, Low Battery Warning, Figaro Sensor, UL2034 Listed - GS811-A, 2 Packs by Jonathan Wilson
Three packs are better!
I love that the batteries last 10 years which is about the time you should be changing your alarm clock anyway. So it's low maintenance. It can be a bit tricky to attach the device to the mount, but with a little effort they mount well.
- Best in niche
- Vulgarity
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