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.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fosmon 113db Bike Alarm with Remote, Motion Sensor Bicycle SOS Alarm, IP65 Waterproof Anti Theft Alarm System, Wireless Siren for E-Bike, Motorcycle, Scooter, Cart, Trailer

Product ID: 128089341

Details

Brand
Fosmon
Compatible Devices
bicycles carts
Global Trade Identification Number
Maximum Range
230 feet
Noise Level
113 db

💧IP65 waterproof rating

📡90ft remote range

🔊113dB piercing alarm

R835

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Description

🚨 Secure your ride, silence your worries!

SMART SOS ALERT - Auto SOS triggers if your bike tilts over 45°, sending an urgent distress signal.
EFFORTLESS SETUP CONTROL - Mount in minutes with adhesive or ties; control remotely up to 90 feet away.
UNMATCHED THEFT DETERRENCE - 113dB alarm blasts instantly at slightest vibration—thieves won’t stand a chance.
TAILORED SENSITIVITY VOLUME - 7 vibration sensitivity levels and 3 volume settings let you customize your security.
ALL WEATHER MULTI USE SECURITY - IP65 waterproof design protects bikes, scooters, trailers, and more—rain or shine.

The Fosmon 113dB Bike Alarm is a compact, IP65 waterproof anti-theft system designed for bicycles, e-bikes, scooters, motorcycles, and trailers. Featuring a powerful 113dB siren, adjustable vibration sensitivity, and a remote control with a 90-foot range, it offers customizable, multi-level protection. Its SOS tilt detection adds an emergency alert function, while easy installation and durable build make it a must-have security upgrade for urban commuters and outdoor enthusiasts alike.

Specifications

ASIN	B07PQ92SHC
Audible Noise	113 db
Best Sellers Rank	#60,291 in Automotive ( See Top 100 in Automotive ) #15 in Antitheft Alarm Systems
Brand	Fosmon
Compatible Devices	bicycles, e-bikes, scooters, motorcycles, carts, trailers
Customer Reviews	4.4 4.4 out of 5 stars (6,648)
Global Trade Identification Number	00879565005795
Item Weight	4 ounces
Manufacturer	Fosmon
Maximum Range	230 feet
Mfr Part Number	51087HOM
Model Number	51087HOM
Number of Items	1
UPC	879565005795
Unit Count	1 Count

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

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R835

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

View all Trustpilot reviews