Kidde Smoke Detector, 10-Year Battery, Photoelectric Sensor Wire-Free Interconnect Smoke Alarm, Voice Alert

It looks better than the photo,blends well with the wall. Has xtra features that I need because I'm hard of hearing.

I added 2 battery powered alarms an one hard wired alarm to my existing home alarm circuit. By using the innovative wireless network option all three alarms now server to trigger all alarms in my home. What an easy way to extend alarms without running the hard wire. Easy to install and to network

My town asked me to regroup smokes in our rental to align with the apartments but only approved this particular model wireless smoke alarm. It was either redo the hardwiring or group them wirelessly using these, and somehow this is the only wireless smoke the town approved.It's been 6 months since I've installed these and since day one they've constantly had false positives. On top of it, just the other day I heard one chirping. These smokes are expensive at $50+ a piece (between smoke and CO I bought nine bc you need to replace all in the same groupings) and they are absolute trash. Did Kidde test or quality assure this item at all!? I don't understand how technology for smokes has some gotten worse over time, particularly for something so critical to safety from a top brand. Worse yet, for some reason the smokes false positive the most right in the middle of the night, 4AM, as if it's just to mess with you.Do everything in your power to avoid these pieces of garbage. I read the other negative reviews and hoped maybe they had gotten unlucky or the model would be updated, but it is certainly all of these smokes that are trash. I'm out 9x$50+, my time, and the cost to replace them all again, this time hard wiring.

I will keep a log here as to how they are working and update it on any issues and suggestions. Due to some reviewers having issues, I am following the directions EXACTLY and paying close attention to ALL the notes and limits._________________________________________________________________________--> Top 3 safety features for me are:1) Inter-connectivity between alarms (sleeping on 2nd story, I need to know asap if the basement detector goes off.)2) Ten-year battery - since this old house is not wired for smoke alarms. (Smoke alarms often get deactivated when regular-type batteries get removed due to low-battery chirps.)3) Dual sensor (Unfortunately, no battery-powered units are made with inter-connectivity AND dual sensor... so I chose the interconnected feature over the dual sensor.)________________________________________________________________________SD = Smoke Detector--> P4010LDCS-W Specs: DC powered by non-replaceable 10-yr battery (not connected to home power), photoelectric type sensor, escape light, wireless interconnected on their own SD network (not on WiFi)--> WiFi: You cannot directly connect THESE units to WiFi/Kidde app, but indirectly you CAN do it by installing the following two detectors (both AC powered) to act as "go-betweens."1) P4010ACS-W (connects to both the P4010LDCS-W network and also the P4010ACS-WF)2) P4010ACS-WF (then connects to WiFi. "WF" stands for WiFi.)-->_________11-16-23: Bought 12 of these smoke detectors11-21-23: Activated (turned on) and installed all 12 units in mother's house on 3 different levels.11-26-23: Two detectors dropped off (became wirelessly disconnected from) the SD network last night (disconnected from the other units). They make what sounds like a single "chirp" sound every 30 sec with amber light every 5 sec. (User guide says they make a "chime" along with the light for this issue. Chime sound is supposed to be for a fault/error... so I guess my idea of a "chime" is different. Using the instructions, I was able to reconnect the 2 SD's to the others.12-11-23: False alarm - Smoke alarm(s) went off today for no reason. Lucky that is was at daytime.2-13-24: One or two detectors started doing a "sonar" sound. I was not nearby so neighbor had to check it out for my mother... I think one or two lost connection with the rest for no apparent reason. He took them down and put them in the garage for now so they wouldn't drive her crazy. I will have to reinstall and reconnect them when I'm there in a month.3-9-24: 4 detectors fell off the detector network. Neighbor came over and didn't know how to shut off beeping. Took them down and left outside in garage. Why do these things drop off the detector network suddenly after working fine for several months??? Brother was able to reconnect 3 of the 4 a week later.______.... definitely some issues, but... it's still the best solution out there for now so I'm trying to be optimistic that they will start staying on the network. To be clear, they continue to test and detect smoke just fine... some just lose contact with each other (fall "offline" the detector network) from time to time, so if an "offline" detector senses smoke, it WILL still alarm, but it won't make the other detectors start alarming.

Loud noise and light is very helpful.

We've had 3-4 false alarms - always in the middle of the night. I requested and was approved for two warranty replacement some detectors.We live in the country away from other homes so it isn't likely a radio interference situation. We don't have a wood burning stove or fireplace.So my recommendation is to look elsewhere. I bought six of these detectors but even so I'm considering abandoning them in favor of traditional detectors with no network that uses 9V batteries and not from this brand.

Set up was easy, no problems linking them together

Within 24 hours after installation the smoke detector alarmed three beeps in rapid succession.Low Battery? This unit has a sealed battery and can't be replaced.I do not believe I will get the advertised battery life from this detector.