Kidde i9040 Fire Sentry Battery-Operated Ionization Sensor Compact Smoke Detector Alarm, White, Pro

Prompt and efficient delivery ( arrived 3 days after ordering ). Alarm is smaller but neater than expected, and is easy to install. Have only tried the alarm on "test" facility, but is quite shrill and loud for it's size. Excellent value all round. Would recommend this for flats, and average to normal house ( up to 4 bedrooms ) although a larger alarm may be needed for larger premises.

The smoke alarm is quite neat and unobtrusive, comes with a battery and all screws and plugs needed to put up. A mounting plate is screwed to wall or ceiling then only a small twist is needed to secure main unit to mounting plate. Had 2 for a month and one went off when someone left open bathroom door after showering. Unit about 1 metre away! Then one night 3am the other went off at random without cause. There's a hush feature on these units so easy to cancel without taking battery out. Knocked off a star because of the last random going off. Only done it once in a month! I would recommend this product for the cost and peace of mind.

Simple to install and batteries seem to last and last, but when they're low, it chirps to let you know. It does not look too obtrusive either, which is good as some smoke alarms can be quite large and ugly to look at. I don't see any reason why you should be concerned as to the reliability of these, but if you are, then you could mix brands of smoke alarms around your house. I would highly recommend grabbing some if you don't have any and while you are at it, look at buying some 9v batteries off Amazon to stock up.

This works great, house still hasn't burnt down, and nobody has died of smoke inhalation. I remember this time my neighbours house was on fire at about 1am, and I could smell it come through the walls so I ran outside and absolutely hammered their door down trying to wake them up, and the neighbour opened the door and I said "your house is on fire" and she replied "I don't think so..." while her stairwell was so full of smoke I couldn't see past halfway the stairs. Turns out they never checked the batteries in their smoke alarms, and also I was right and their house was on fire, but the fire services dealt with that in the end. Seriously, everyone needs this in their home, and needs to make sure it works. I mean, not necessarily this smoke alarm specifically, but get a fine smoke alarm. It is 10 quid and saves your life. Why is this something people even need to be told?! I'm just saying, I don't live next door to all of you, right? That would be too much to ask.

All homes should have a smoke alarm as a matter of safety, several in fact and I did indeed already have 2 fitted. They were not wired to the mains and were battery operated, but the problem with battery operated smoke alarms is their limited battery life. What drew me immediately to this superb smoke alarm was the 10 year battery life! The unit comes complete with its own built in Lithium ion battery. That’s very impressive to say the least and leaves you feeling safe and secure once its fitted. Mine is now fitted upstairs and I know I don’t need to worry about its battery for a decade. Excellent! It arrives simply boxed and includes a comprehensive instruction leaflet that advises on how to fit it, where to fit it and also it ships with 2 screws and raw plugs to enable you to fit it. One thing I learnt when I read the instruction leaflet was that Photoelectric smoke alarms are better at detecting and alerting you to slow smouldering fires that smoulder for hours prior to bursting into flames. I felt extremely reassured by this information that prior to reading that leaflet, I didn’t even know! I like the fact also that the unit has an operating LED light which flashes every 53 seconds to confirm to you that the unit is working and protecting you and there is also a low battery warning alarm ( beeps every 40 seconds) which I haven’t actually heard as my unit is new but I’m glad its there so that when my alarm battery is running low I will be aware enough to do something about it rather than leaving me unprotected. I received this product discounted in order for a unbiased product review

Its a smoke detector that doesn't go off at 2AM when there is no fire (the unit this replaced did) or when I grill sausages - which as we pretty much forced to have these horrid devices that seem just cost money, annoy us by going randomly, causing us to risk falling off ladders/chairs to deactivate them as they are mounted high on ceilings this - is an excellent feature. I've yet to have a situation to test its true 'house fire detection' ability and am not planning to change this any time soon.

I bought one of these for peace of mind but as I live with just me and my girlfriend we are usually in the kitchen when cooking. If I had kids and was in and out of the kitchen where I couldn't see or smell burning I wouldn't really trust it all that much. Its a safey product - you get what you pay for so I'd buy a more well known solid unit you can trust. If like me you live in a small flat where you would see or smell it probably before the alarm anyway and want it just in case then go for it. Price is cheap - product is plasticy BUT it works.

Bless it, my little Kidde Lifesaver I9040UKB smoke alarm hasn't had to do much the 2 years it's been stuck on my living room ceiling, so I can't really give it an honest review until it goes off...or doesn't as the case may be... in the event of a fire. If it does go off and I hear it I'll give the wonderful piece of kit five stars, if it doesn't and I don't then by golly I'll give the terrible piece of sh i t one star.

Does what it is supposed to do. Very easy to install.

good quality product alarm activates as per design

Exact replacement

Good. Served my purpose.

Unfortunately, uses 9 volt battery (got tired of buying those expensive batteries, so I bought rechargeable NiMH 9v charger right here on amazon,{Caution Lithium Ion batts will NOT work ionization type smoke detectors / I've already made that mistake}.....very inexpensive for 2 bats and charger, BTW)…..so, since I'm a landlord and have 3 apartments here in Brooklyn that mandates I supply smoke detectors and this one fits the bill. I have it in my own apartment and it works quite well; just keep about 8 to 10 feet away from cooking stove and at a height where you can push the reset button! Ionization detectors are far more accurate at detecting "fire" smoke as they are not infra red operated! Kidde is a superb brand that I've been using for years and now I can just buy ONE when I need to replace every 7-10 years instead of a card of 2 or 3 like at Costco or big box store! Very inexpensive for what it is and trust me when I say I've bought too many of these that they almost seem disposable. BTW,...ALL of the smoke detectors now made have a lifetime of 7-10 years before you have to toss them! DEFINITELY WORTH THE COIN! UPDATE: 2/8/20....all of these are still working like gangbusters AND the price is now all of $4. Yep, NOT a typo $3.84 to be exact! Now that really IS a no brainer! Hey folks,...I spend a fortune in time, energy and money on stuff that I buy and use here on amazon so, if this review was HELPFUL,....well you know what to do! Thanks fellow consumers! UPDATE: 5/16/21.....apparently these have gone up in price to approx. $11.00,.....don't you just love human nature's ability to pique the "greed" factor out in so many of our fellow human beings?? I willl certainly buy as few things as possible from this point forward. I am really NOT predisposed to pay for private Taj-Mahal reflecting pools on private islands OR expensive divorces. Are You?? I guarantee this addendum will not make it past amamzon big brother censor! You really should be red and bald faced ashamed at what you do with price manipulation. It's not ALL trade embargoes....it's lets get filthy rich at our LOYAL customers' expense, eh Jeff???