Sensitivity adjustment is not working for me. I follow the instructions, but when I press the button I hear the same 3 pitches.

Do this for step one: hold the unlock button for 6 seconds. In that 6 seconds you'll see the blue light around the lock symbol come on and go off then come back on (you'll also hear some tones but they're not important). It's when the blue light some back on at 6 seconds that you're in business. You can now follow instructions 2 thru 4. That's it.

Is the remote water waterproof???

We bougt the arlam to use indoors. It does say on the box that it is waterproof. Since it is a bike alarm that makes sense.

Will this keep the dogs away when I go fir a walk???

I don’t know if that would work or not. It is very loud and May startle the dog, don’t think it will chase a very aggressive dog away though.

could it be used to prevent catalytic converter thefts?

Not sure unless you just put it on the car in general then it may or may not work for that I keep it on my e-bike works perfectly for that.

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Fosmon Anti Theft Burglar Bike Alarm with Remote, Waterproof Vibration Triggered Battery Operated Loud 113dB Wireless Siren for Bicycle, E-Bike, Motorcycle, Scooter, Cart, Trailer, Equipment, Fence

Fosmon Anti Theft Burglar Bike Alarm with Remote, Waterproof Vibration Triggered Battery Operated Loud 113dB Wireless Siren for Bicycle, E-Bike, Motorcycle, Scooter, Cart, Trailer, Equipment, Fence

Product ID: 441094325

Details

Brand
Fosmon
Compatible Devices
Bicycle E-Bike
Maximum Range
90 Feet
Noise Level
113 Decibels
Remote Control Included?
Yes

💧IP65 waterproof durability

📡90ft wireless remote range

🔊113dB ultra-loud siren

€ 71.11

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚨 Secure your ride, silence your worries — the ultimate anti-theft guardian!

SEAMLESS WIRELESS CONTROL - Arm/disarm from up to 90 feet away with remote—pair up to 8 remotes for full control.
UNMATCHED THEFT DETERRENCE - 113dB alarm blasts instantly to scare off thieves before they strike.
BUILT TO BRAVE THE ELEMENTS - IP65 waterproof rating ensures relentless protection rain or shine, backed by lifetime warranty.
VERSATILE MOUNTING ANYWHERE - Adhesive or cable tie installation fits bikes, scooters, trailers, fences, and more.
PRECISION VIBRATION SOS SENSING - 7 sensitivity levels detect even the slightest tampering or accidents with SOS alert.

The Fosmon Anti Theft Burglar Bike Alarm delivers a piercing 113dB siren triggered by vibration or movement, customizable with 7 sensitivity and 3 volume levels. Its wireless remote control works up to 90 feet, supporting multiple remotes for shared access. Waterproof (IP65) and easy to mount via adhesive or cable ties, it protects bikes, e-bikes, scooters, motorcycles, trailers, and more. Featuring an SOS tilt alert for accidents and backed by a limited lifetime warranty, this alarm is a versatile, reliable security solution for your valuable gear.

Specifications

ASIN	B07PQ92SHC
Audible Noise	113 Decibels
Best Sellers Rank	#360,096 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #590 in Theft Protection
Box Contents	Battery
Brand	Fosmon
Brand Name	Fosmon
Compatible Devices	Bicycle, E-Bike, Scooter, Motorcycle, Cart, Trailer, Equipment
Customer Reviews	4.4 out of 5 stars 6,520 Reviews
Global Trade Identification Number	00879565005795
Includes Remote	Yes
Item Weight Unit of Measure	4 Ounces
Manufacturer	Fosmon
Manufacturer Part Number	51087HOM
Maximum Range	90 Feet
Model Number	51087HOM
Noise Level	113 Decibels
Number of Items	1
Remote Control Included?	Yes
UPC	879565005795
Unit Count	1.0 Count

Reviews

G**U

Facile à poser et fait le job

Top, simple et efficace

29.06.2026

S**R

Klasse Alarmanlage

Sehr gut sehr laut sehr empfindlich was gut ist. Benutze es überall wo geklaut werden könnte. Sowie im Rucksack am Meer, oder im Haus wenn Putzfrau kommt, am Motorrad und Fahrrad. Oder auch vor Fenster und Türen.

14.07.2026

M**S

Good and loud

Good item good to be safe, quite loud

18.07.2026

J**A

Satisfecho con el producto

Excelente producto

24.02.2026

F**W

Rower jest zabezpieczony - pozornie😉

Fajny gadżet moim zdaniem bardzo dobrze wykonany, kupiłem coś podobnego na aliexpress i nie było to w jakość jak jest tutaj. Generalnie fajnie się sprawdza chociaż wiadomo, że nie jest zabezpieczeniem doskonałym ale odstrasza potencjalnego złodzieja i chyba dlatego został zrobiony. Sygnał głośny. Czujnik ruchu wrażliwy. Zapewne przyda się jako odstraszacz amatorów nieswoich rowerów

13.08.2024

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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