

🚨 Stay a step ahead—secure your ride with Fosmon’s thunderous 113dB shield!
The Fosmon 113dB Bike Alarm is a rugged, IP65 waterproof anti-theft system featuring a powerful 113-decibel siren, adjustable vibration sensitivity, and SOS tilt detection. Wireless and easy to install, it supports up to 8 remote controls and is perfect for securing bikes, e-bikes, scooters, motorcycles, and more, backed by a limited lifetime warranty.
























| ASIN | B07PQ92SHC |
| Batteries | 3 AAA batteries required. |
| Best Sellers Rank | 3,887 in Automotive ( See Top 100 in Automotive ) 12 in Motorbike Theft Protection |
| Brand | Fosmon |
| Customer Reviews | 4.4 4.4 out of 5 stars (6,791) |
| Date First Available | 13 May 2019 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 113 g |
| Item model number | 51087HOM |
| Manufacturer | Fosmon |
| Manufacturer part number | 51087HOM |
| Product Dimensions | 9.5 x 4.19 x 2.29 cm; 113.4 g |
| Special Features | Waterproof, Wireless |
S**H
SOLID BIT OF KIT
Very sturdy and super loud! Just what you need. Had a similar model before but nowhere near as loud. Easy to install pull tab out and it’s ready to put wherever you want it. No idea how long battery life is, solidly made quite heavy for size.
M**L
Great piece of kit
For a cheap little alarm this is great tells me when the local cats are on my scooter which is one of the reasons I bought it to stop the little blighters from getting under the cover and scratching my seat and also it’s a bit of a deterrent from light fingered people has different sounds and gets louder to her your attention well worth buying .
J**Y
Good value for money
Good alarm for motorbikes 🏍 . Install under saddle for concealment . Can be set to a loud alarm .
M**.
Good value
Loud and sensitive but not to sensitive,works as needed.
G**Y
Great little alarm
Very easy to set alarm to your requirement, nice and loud, would recommend
W**4
Very loud
Very simple device to fit and use also Very loud so should deter would be thieves if you need quick stop at a store. All in all a worthwhile purchase.
M**S
Windy tarp dont bother, inside garage amazing
This is actualy pretty good, lifted seat up popped it with 2 x zip ties under seat, easy to alarm, with the fob, if bike moves alarm goes off exactly what it says on the tin, works perfectly, now for the downfall if its windy it sets it off if you have it under a tarp/cover, that said if it's in a garage shed ectthis is awesome
T**.
Bike alarm
Very pleased good alarm for my bike.
W**C
Ça marche très bien J'en suis très content Merci
P**A
It does what it’s supposed to do
G**Y
Works great, nice and loud.
A**Ç
çok kaliteli bir ürün
J**M
It does everything it said it would. The at third from the most sensitive setting it will give a warning siren if I close my front door too hard. The battery lasts a long time, and it is very loud. The remote works well, and configuring it was easy. I haven't tried it on a bicycle, but I am thinking of installing one on my motorcycle.
Trustpilot
1 month ago
5 days ago