

🚨 Stay a step ahead—secure your ride with Fosmon’s fierce 113dB shield!
The Fosmon 113dB Bike Alarm is a compact, IP65 waterproof anti-theft system featuring a powerful 113-decibel siren triggered by vibration or movement. It includes a wireless remote control supporting up to 8 remotes, adjustable sensitivity and volume levels, and an SOS tilt alert for accidents. Designed for bikes, e-bikes, scooters, motorcycles, and more, it offers easy installation and a limited lifetime warranty, delivering robust, versatile security for your valuable ride.







| ASIN | B07PQ92SHC |
| Batteries | 3 AAA batteries required. |
| Best Sellers Rank | #74,238 in Automotive ( See Top 100 in Automotive ) #23 in Antitheft Alarm Systems |
| Customer Reviews | 4.5 4.5 out of 5 stars (6,284) |
| Date First Available | May 13, 2019 |
| Item Weight | 4 ounces |
| Item model number | 51087HOM |
| Product Dimensions | 3.74 x 1.65 x 0.9 inches |
| Wireless Remote | Yes |
P**E
A Must-Have Security Upgrade for My Electric Scooter
I recently added this remote-controlled alarm to my electric scooter, and I couldn’t be happier with the results. As someone who relies on my scooter for daily transportation, I’m always concerned about theft, especially when locking it up at a bike rack in public. This alarm has given me so much peace of mind. Durable and Well-Built The alarm feels solid and well-made. It’s compact enough to stay out of sight, but the quality of the build gives me confidence that it can withstand daily use and varying weather conditions. Powerful Alarm The sound is LOUD—exactly what you want in an alarm. If someone so much as nudges the scooter, it triggers a piercing alert that would scare off any would-be thief and draw immediate attention. Easy Installation The installation process was straightforward. It comes with everything you need to attach it securely, and the instructions were clear. I had it set up in less than 10 minutes. Convenient Remote Control The remote control is a game changer. It’s small enough to carry on my keychain and has a good range, so I can activate or deactivate the alarm without having to be right next to the scooter. The remote also feels sturdy and well-designed. Added Security Layer While I always lock up my scooter with a quality U-lock, this alarm adds a crucial extra layer of security. Knowing that any tampering will trigger a loud alarm makes me feel much more comfortable leaving my scooter unattended for extended periods. It’s a deterrent that could make a potential thief think twice. Battery Life The battery life has been excellent so far. I’ve been using it for a few weeks, I appreciate that it doesn’t drain quickly despite being in constant use. Overall This remote-controlled alarm has become an essential part of my scooter setup. It’s affordable, easy to use, and provides an extra layer of protection that every electric scooter owner should have. If you’re looking for a reliable, effective way to deter theft, this is it. Highly recommend!
J**N
Good Enough For Me
I live part-time in my van. I put this on my generator when I’m out camping. I use the generator to charge up my power stations when there’s insufficient sun for solar charging them. Even though my generator is chained to my vehicle when outside, this gives me an extra measure of confidence against theft when I’m temporarily away from my campsite. The alarm is loud enough and annoying enough for my purposes.
M**A
Safety Trend Established
I bought it because I really liked the concept of my bike being able to have an alarm on it just like a car. It works amazingly well. My father in law lies it so much he got one for his bike too.
D**I
Quite solid bike alarm
I was pleasantly surprised about how loud and clear it is, installing it was very easy and the manual was very clear, the remote is very sleek and feels like quality, so far it has worked well and feels like a solid investment and just a small price to pay for increased bike safety.
D**R
Love this alarm
This alarm is great. Custom settings and a loud motion sensing sound
G**O
Not as loud as I thought
Not as loud as I thought
H**Y
Alarm tested on EBike and it works
i just tested it on my E bike, the Alarm is Very loud once i activated it and it was placed on my E bike, i shook the bike and it Went’ Loud!!!! good so far, not bad for price, Definitely helps to keep Snakes away
J**M
Great motion sensing alarms
So I bought these for going on an overseas trip. They worked great for that. I bought 3.1 for the door and 2 for something else. I won't go into detail on that here. I only ended up using one on the door, and it worked great. The things are loud as hell. I had 2 programmed to 1 remote and 1 on it's own. An unforeseen use came up at home as well. My dog loves to get into the blinds to look outside. I was worried she would mess them up. So I programmed them all to 1 remote and put them on the windowsills when I'm at work. Now she won't touch them! You can change how sensitive or how loud it is. I didn't find the need for any of that though. If you need some type of motion (vibration) sensing alarm, this is a great option.
G**Y
Works great, nice and loud.
A**Ç
çok kaliteli bir ürün
S**A
Uso este alarme para a minha trotinete á três meses e devo dizer que nunca me falhou. Possui diferentes modos de som, o que permite mudar para diferentes situações e normalmente ando sempre com muita chuva e ele continua 100% funcional. Produto com uma boa relação preço-qualidade. Recomendo!
E**E
Klappt alles super damit. Ist auch sehr zuverlässig. Hatte es am E-Scooter befestigt und jetzt am Fahrrad. Bisher keine Probleme. Das Gerät ist übrigens super laut!
A**E
Great value little alarm that is easily customisable for purpose. 7 sensitivity settings 3 choice of tones Volume is customisable When armed, gives two brief different tonal warnings intervals apart before it wreaks havoc (continuous). Also has finder button to locate item. For $23-28, despite the crisp plasticky look and feel of the remote, this little wonder has become a necessity as an effective deterrent to bike theft as bike locks are all eventually overcome with the right tools. So nobody's complaining. Thankyou! Trick is to find a spot to hide/ secure it so that it is hard to remove too easily.
Trustpilot
2 months ago
2 weeks ago