Very Quick
"* Purchased these for some rental units and had to return them because they failed passing a fire department inspection due to not having a battery backup."
"Like all detectors you never really know what it doing until you need it, which 99% of us never thankfully will."
"There are much better products available, for a similar price."
"No batteries needed since it plugs directly into an outlet."
"Also, it has a little red LED that glows to show that the unit is on, I always associate red with bad and would have designed it with a green LED, but who cares about my opinion on the matter."
"* I purchased this version, non battery backup type, because power outrages are very rare in our area."
First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup (Click to Compare Deals)
Quick
"* Works as it should, I think. Like all detectors you never really know what it doing until you need it, which 99% of us never thankfully will. Great price."
"* Works great. No batteries needed since it plugs directly into an outlet. If you do not want to use an outlet, this is not for you."
"I wish I would have gotten the zwave smoke and CO detectors, but I only got the zwave smoke and tried to save a few bucks, now with a new HE furnace I had to pick up some of these to meet code. The only downside is that I give up outlet space and the unit is a little wide and larger than I expected... Also, it has a little red LED that glows to show that the unit is on, I always associate red with bad and would have designed it with a green LED, but who cares about my opinion on the matter."
"* I purchased this version, non battery backup type, because power outrages are very rare in our area. The design is simple and non-obtrusive. Delivery was very quick."
