






🔥 Stay connected, stay protected — because your peace of mind shouldn’t take a break! 🔗
This wired smoke alarm system features hardwired interconnection for up to 12 units, ensuring comprehensive home coverage. Powered by mains electricity with a 9V battery backup lasting over a year, it guarantees continuous operation even during power failures. The alarm includes a convenient silence button to quickly mute false alerts and a one-button test function to check all connected alarms simultaneously. Compact and certified to EN14604 and UL217 standards, it offers reliable, fast fire detection to keep your home and loved ones safe.









| ASIN | B0BWJ45F8Q |
| Alarm | Audible |
| Best Sellers Rank | 143,098 in DIY & Tools ( See Top 100 in DIY & Tools ) 237 in Smoke Alarms |
| Brand | Jemay |
| Customer Reviews | 4.2 out of 5 stars 274 Reviews |
| Item Dimensions D x W x H | 4.1D x 12.7W x 12.7H centimetres |
| Model Number | GS518A |
| Operating Humidity | 95 percent |
| Operating humidity | 95 percent |
| Part Number | GS518A |
| Power source | Battery Powered |
| Product Style | Classic |
| Product dimensions | 4.1D x 12.7W x 12.7H centimetres |
| Style | Classic |
| Unit Count | 2.0 count |
F**S
Feel safe with these
Look good - easy to install having replaced existing alarms. Can test to make sure they work and we feel safe with them installed.
L**A
Amazingly easy to fit and great product
These arrived quickly and were exactly as described. Very easy to fit and change old fittings to these. Even includes new batteries, so win win! I nearly ordered them again but these have 10 year guarantee so didn’t. Great product at bargain price.
K**R
Easy to fit , modern device
Product came with batteries but no screws or rawlpugs. Still quite easy to fit , as long as its possible to accommodate the mains connector by enlarging a hole in the mounted surface. Needs a bit of smoke to trigger. Matches don't do it , burnt toast will. Still means fewer false alarms. Looks much better than alarms they replaced
N**D
Not rocket science and gives peace of mind.
Easy to wire up. No Earth point. Used as replacement for alarms fitted when house was new. Turned them off because they would not stop chirping away. Didn't realise they only last a decade or so. My original alarm still available but at £32/each .and its dated tech. now so at half the price its a no brainer. Fixed to old wiring with insulated block connector which was already fitted. Colour coding has changed since then but its not rocket science and they come with simple to follow instructions. Easy. peace of mind again.
D**S
Be wary!!
Less than 2 years old and got woken up early hours of the morning by the smoke alarms going off due to a fault. Couldn’t turn them off by the reset button so had to disconnect at 5am. Makes you think, would they go off if there was a real fire!!??? Have to get 2 new ones now to replace them. Don’t buy these cheaply made alarms. Supposed to last 10 years, should get money back if they don’t last the time they advertise. Don’t buy them.
K**L
Smoke detectors
Bought these to replace 2 faulty ones. Good price with clear instructions, fitted easily by a qualified electrician. Bonus to have back up batteries included in the packs.
J**S
Good product
I bought this product as I had issues with the previously installed had an error. I took my time to read the instructions and installed these myself. as sthe instructions were easy to follow. The units are working well.
R**W
Easy to install but no screws or Rawlplugs
As per title , presume it is thought taht fitter would use existing screws and Rawlplugs . i was able to reuse them but I'd lost one screw so had to find another suitable one and ended up not using Rawlplugs
Trustpilot
3 weeks ago
2 months ago