SEBSON Wireless Smoke Alarm Linkable incl. Magnetic Fixing, Smoke and Heat Detector, Photoelectric, Battery included, DIN EN 14604, VdS 3131- Ø120x36mm

Did not suit my requirements so was returned for a full refund

Interlinked smoke detectors will be mandatory in Scotland from early next year. Installing wired alarms in my property would be a major exercise (and expensive). These provide a low cost, quick DIY solution. They come with everything you need, including 2 AA Alkaline batteries - I prefer these to the PP9 square batteries - readily available, cheap, and you could get lithium batteries if you wanted longlife ones.The alarms are easy to setup - look for the Sebson Youtube video (in German, but you just wantto see the steps). Basically:- set out the alarms on a table or similar- press and hold the button on one of the alarms (the master) until it has gone through 3 cycles and shows a solid red light- press the button on each of the other alarms briefly - the alarm will pair and flash- if it doesn't flash, just press the button again- repeat for all the other alarms- test by setting off one of the alarms- distribute the alarms around your houseI bought the magnetic version. These were very easy to attach - just peel off the protector on one pad, attachit to the ceiling, peel the corresponding protector off the other pad, attach it to the alarm, reach up with thealarm and the installation is done. This is much better than having to find joists in the ceiling to drill into - you can place the detectors anywhere you like, and it is quicker and less messy. So far the detectors have stayed up (mostof our ceilings are 1980s artex, rather than smooth plaster, so this is pretty good!). I made sure that if they did fall down, they wouldn't fall onto an ignition source (e.g. a cooker/fire), of course. If the adhesion does fail, I will probably just use a dab of gorilla glue.I have bought smoke detectors for my hall and landing, living spaces, and bedrooms, plus a heat detector for my kitchen. I have kept my previous detectors as well. This is probably overkill, but means I'm not dependent on any single detector and reduces risk if any battery fails (the house is quiet, and I can hear any one of them from my bedroom anyway, so the interlinking is probably redundant!).They are quite loud - if you have thin walls, I wouldn't set them up or test them late at night! I haven't tried setting them off for real yet, but I have enough redundancy now that I'm not too worried about.If you have any Amazon Echos and don't mind the privacy implications, Amazon is supposed to be releasing something called Alexa Guard, that actively listens for sounds of smoke detectors and will alert you. I think it is US only at the moment, but once it's in the UK, it could work nicely to give you a remote warning, giving you additional protection (it also works as a burglar alarm). That could be great for e.g. a holiday home, or when you are away from the house.Overall, a good purchase that will help protect my family, and will keep my home legal without major disruption.

I first installed a pair of these - one in the garage and one in the flat above. Working in the flat a few weeks later and the alarm sounds off - my builder was smoking in the garage! I've now installed 4 more as a set in the main house which has a large basement. I am really impressed with this product.However the instructions abouut paairing are c....p (as several reviews point out). It really is very simple....press the switch on the master for about 20 seconds until the light goes solid red. Then press each 'slave' until the master starts flashing fast. Then add the second slave etc. Then once you stop adding they will all have a chiirup at each other for around 30 seconds when you think everything has gone crazy. And that's it. Doesn't matter which one starts out as the master - it's the first one you decide to be the master!I can't comment about battery life but I read such bad reviews about using Lithium AA cells that I went for Energizer Industrial alkalines as I didn't wholly trust the unknown brand that came with the detectors.Finally....the magnetic attachers are also amazing. Stick on, no screws.I gave 4 stars because I want to see how good the battery life is and the instructions are less than helpful but at the moment I am very happy with the product.

Bought 4 very easy to fit very easy to interconnect. Battery Life variable 2 of the alarms battery needed replaced within 4 months other 2 fine biggest issue was 1 with the replacement batterys already in started to sound and wouldn't stop until batteries were taken out tried to replace batteries outside in fresh air still wouldn't stop sounding , ending up ordering a new one to replace it.However also bought same system for mother in law and she has encountered no issues at all with battery life so maybe I had last batch on a Friday models .

Easy enough to set up, even if the synching means all four alarms sounding for one minute.Fixing by screws can be messy and inefficient and I found trying to get the alarm onto the fixed base plate tricky, so opted for the sticky pads instead. Beware, they shouldn't be used for fixing until the glue has properly set, which takes 24 hoursUPDATE: The sticky pads don't work. The alarms have either fallen off from ceiling/disc position or the alarm/disc. I've even tried supergluing them back on but the other side of the pad comes unstuck . As there's 4 sides of the pads to each unit, I've just reverted to the plugs and screws

was wanting to link this to a GS series heat sensor, but seems this particular model only links to this same series - you have to get the GS559A is you want to network with "others in the series" rather than this one which networks with "others of this type"

The English written instructions that come with the products are ambiguous and misleading. Read MB's review from Jan 2019 as I did and you'll see actually how easy it is to pair up the detectors. I only wasted half an hour trying to follow Sieben's instructions before looking at the reviews.If you dont have 20/20 vision then make sure you have a pair of strong reading glasses to hand to read the instruction sheet that comes with the product.Having got that lot off my chest these seem to be an effective product - only just installed but got them working across 2 floors . I suspect some of the negative reviews are due to people trying to follow the written instructions! What I specially like is the single large button in the centre of the detector to mute the alarm if you get a falsie and that it mutes for 10 minutes.