X-SenseSmoke and Carbon Monoxide Detector Combo, Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with 10-Year Battery, Up to 24 X-Sense Link+ Wireless Alarms, SC01-W, 3-Pack

The media could not be loaded. I suppose I should wait to fj a review until It's been a while of cooking, sleeping etc. But after 3 of these alarm purchases, other brands, having to return, extremely cheaply made, just didn't work which is scary and having to go thru hassle of returning, I'm ecstatic about this unit. It's very very sturdy and well made. When you hold it you can feel the quality. Easy to install. Great instruction manual and lots of warning stickers, just in case. I'm in a Van Conversion/a small RV. I have everYou could think of and I use propane. I travel with my two companions, Toby and Milo, and they are worth more than gold to me so I want to keep them safe. I feel extremely safe with this alarm and price point is great. If you need a smoke/carbon monoxide alarm you can't go wrong with this unit.

I ordered the three pack. These detectors are very nice quality and they were easy to install. No batteries are needed. They have a ten year life span. Batteries cannot be changed once the ten years at up.. I am very happy with this product.

Bought this kit for a house with older (non-wired, non-interlinked) smoke and CO detectors.Installing was as straightforward as any other smoke detector: follow rules on where to locate the detector in each room where it is needed; put ring up where the detector will be; mark holes; drill; attach; then activate and put alarm in place.Once all were installed, the additional step of verifying interconnectivity requires at least one other person, as someone needs to hold down the "test" button on one unit, and another person needs to run through all the rooms to verify that all the other detectors are going off as well. You can generally hear the signal propagating (the detector you are testing goes off, then a few seconds later all those it can directly "talk to" go off, then a second later all those that those detectors can directly "talk to" go off, etc), but having another person makes the process both easier and more precise.All units tested accurate when installed, and have had no issues in the two weeks since (I have had instances where I bought a smoke detector from a store and installed it then it started giving false positives a few days later).Note that all these units are interconnected out of the box. The manual describes a fairly simple process to "detach" one or more units from the set, and to "attach" additional units to the same set. If you need more than 6 of these, or if you need to share the detectors in one set between two different houses, etc, you'll want to follow one or both of those procedures.Only real downside here is that the units are a bit "thicker" than Kidde or First Alert units. If you have both installed side by side for some reason, it is very noticeable. The design itself is also very "boxy" rather than the more tapered designs of some competitors. However, I don't think many real users will care.

They were easy to interconnect to each other. Needed to drill 3 holes for each one to get base plates in place vs using existing screw holes, but not that hard to do. If they really last 10 years and no replacing of batteries it will be worth the cost. To avoid getting on a ladder to test them periodically it would be nice to have a small remote … Lou can buy an extra one that you don’t install to test the rest of them but a remote would be much more handy. Just installed so can’t respond to reliability / functionality yet.

Simple and effective. Look nice too

Does what it should. Was easy to install in a few minutes. Note do not flip switches without reading as apparently the switch on the back is to 'permanently' disable the unit once it's life span is over (10 years) and if you accidentally flip this switch it's then trash.This was installed in the hallway and I do notice at night an occasional blue flash as the screen lights up for a second, I assume it's a self test or something and seems to be normal.

Very nice! was great to get rid if the old ones that had yellowed over time.

ARRIVED ON TIME AND WAS SIMPLE TO INSTALL. GOOD FOR 10 YEARS