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.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

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: 280129426

Details

Brand
Fosmon
Compatible devices
bicycles carts
Maximum range
90 Feet
Noise level
113 Decibels
Remote control included?
Yes

💧IP55 waterproof rating

📡90ft wireless remote range

🔊113dB ultra-loud siren

€ 65.60

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Description

🚨 Protect your ride like a pro—because your gear deserves the loudest guard in town!

SOS ACCIDENT ALERT - Automatic SOS beep triggers if your ride tilts over 45°, adding a life-saving layer of protection.
UNMATCHED THEFT DETERRENCE - 113dB alarm blasts instantly on vibration—your bike’s personal bodyguard.
VERSATILE SECURITY SOLUTION - Beyond bikes—perfect for scooters, trailers, fences, and even luggage. One alarm, endless peace of mind.
TAILORED SENSITIVITY CONTROL - 7 vibration levels & 3 volume settings let you customize security to your environment.
EFFORTLESS MULTI DEVICE SETUP - Pair up to 8 remotes and mount anywhere with adhesive or cable ties—security that adapts to you.

The Fosmon Anti Theft Burglar Bike Alarm delivers a piercing 113dB siren triggered by vibration, with adjustable sensitivity and volume levels for personalized security. Featuring a wireless remote with a 90-foot range and an SOS alert for accidents, this IP55 waterproof alarm is easy to install via adhesive or cable ties. Compatible with bikes, e-bikes, scooters, motorcycles, trailers, and more, it offers versatile protection backed by a limited lifetime warranty.

Specifications

ASIN	B07PQ92SHC
Audible Noise	113 Decibels
Best Sellers Rank	#102,211 in Automotive ( See Top 100 in Automotive ) #88 in Motorcycle Theft Protection
Brand	Fosmon
Compatible Devices	bicycles, e-bikes, scooters, motorcycles, carts, trailers
Compatible devices	bicycles, e-bikes, scooters, motorcycles, carts, trailers
Customer Reviews	4.4 out of 5 stars 6,520 Reviews
Global Trade Identification Number	00879565005795
Includes Remote	Yes
Item Weight	4 Ounces
Manufacturer	Fosmon
Maximum Range	90 Feet
Maximum range	90 Feet
Mfr Part Number	51087HOM
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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews

€ 65.60

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews