--- product_id: 125839720 title: "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" brand: "fosmon" price: "210.20 DT" currency: TND in_stock: true reviews_count: 13 category: "Fosmon" url: https://www.desertcart.tn/products/125839720-fosmon-113db-bike-alarm-with-remote-motion-sensor-bicycle-sos store_origin: TN region: Tunisia --- # IP65 waterproof rating 90ft remote control range 113dB ultra-loud siren 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 **Brand:** fosmon **Price:** 210.20 DT **Availability:** ✅ In Stock ## Summary > 🚨 Stay one step ahead with Fosmon’s fierce 113dB bike guardian! ## Quick Answers - **What is this?** 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 by fosmon - **How much does it cost?** 210.20 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/125839720-fosmon-113db-bike-alarm-with-remote-motion-sensor-bicycle-sos) ## Best For - fosmon enthusiasts ## Why This Product - Trusted fosmon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unmatched Theft Deterrence:** 113dB alarm blasts loud enough to stop thieves in their tracks. - • **Built to Brave the Elements:** IP65 waterproof design ensures reliable protection rain or shine. - • **Effortless Wireless Control:** Remote pairs up to 8 devices with a 90ft operational range. - • **Versatile Multi-Use Security:** Perfect for bikes, e-bikes, scooters, trailers, and more—security that adapts. - • **Precision Vibration & SOS Sensing:** 7 sensitivity levels + SOS tilt alert for instant accident signaling. ## Overview The Fosmon 113dB Bike Alarm is a robust, IP65 waterproof anti-theft system featuring a powerful 113-decibel siren, adjustable vibration sensitivity with SOS accident detection, and a wireless remote control with up to 90 feet range. Designed for bicycles, e-bikes, scooters, motorcycles, and trailers, it offers versatile, easy installation and reliable security backed by a limited lifetime warranty. ## Description Product Description Loud 113dB Bicycle Alarm Protect and deter theft with Fosmon’s 113dB Bicycle Alarm. This alarm works great to provide additional security for bicycles, motorcycles, e-bikes, scooters, carts, trailers, and other expensive equipment. Vibration and SOS Sensor Alarm This bike alarm responds to vibration and being moved. When nudged, a small beep will sound, and when it is moved the alarm will trigger for 30 seconds or until stopped. With SOS enabled, the alarm will automatically make a beeping sound when your vehicle falls over due to accidents. 7 Levels of Adjustable Sensitivity Control the sensitivity of your vibration sensor alarm with 7 levels of adjustment. The alarm sound can also be set to 3 different volume levels. This allows you to set up your bike alarm however you want it. Setup is Easy Package Includes: 1x Alarm (batteries included), 1x Remote (battery included), 2x Cable Tie, 2x Double Sided Tape, 1x Opening Pick, 1x Screwdriver, 1x Quick Start Guide Review: Scooter - Nice & slim , easy set very load piece of mind . Fitted to a moblity scooter which is stored outside under a cover . Review: Bike - Hi there, yes it’s very very useful very loud as well. I’ll have to find out how to turn it down a bit but the alarm is very good for the Bike and I’m stuck it right between it very hard to get off as well. Keep up the good work, very good alarm I’ve had these ones before. ## Features - [Loud 113dB Bike Alarm] Fosmon’s 113dB loud vibration bicycle alarm with remote control is a great tool to protect your bike from theft. Keep your bicycle, e-bike, scooter, motorcycle, and more secured with this alarm. - [Vibration Sensor And SOS Alarm] When armed, this anti-theft bicycle alarm responds to vibration or being moved. You can manually adjust the 7 different sensitivity levels and 3 volume levels to best fit your setup. SOS function will detect an accident if the vehicle is tilted more than 45° from its original position, and then make a beeping sound to signal for help. - [Easy To Set Up] This anti-theft vibration alarm is easy to set up. First, determine the mounting surface and clean accordingly. Then apply the provided adhesive or mount using the cable ties and brackets on the backside of the alarm. An alarm can be paired with up to 8 remotes. - [Multi-Purpose Alarm] Use this anti-theft alarm for a variety of purposes: as a luggage alarm, fence alarm, trailer alarm, and more. This device works great as added security when used with locks as well. - [Limited Lifetime Warranty] This product comes with a limited lifetime warranty. Please refer to Fosmon’s website for more information. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PQ92SHC | | Audible Noise | 113 Decibels | | Best Sellers Rank | 2,665 in Automotive ( See Top 100 in Automotive ) 10 in Motorbike Theft Protection | | Box Contents | Remote Control, Screws | | Brand | Fosmon | | Brand Name | Fosmon | | Compatible Devices | bicycles, e-bikes, scooters, motorcycles, carts, trailers | | Compatible devices | bicycles, e-bikes, scooters, motorcycles, carts, trailers | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 6,586 Reviews | | Global Trade Identification Number | 00879565005795 | | Includes Remote | Yes | | Item Weight | 4 Ounces | | Manufacturer | Fosmon | | Manufacturer Part Number | 51087HOM | | Maximum Range | 90 Feet | | Maximum range | 90 Feet | | Model Number | 51087HOM | | Noise level | 113 Decibels | | Remote control included? | Yes | | UPC | 879565005795 | ## Product Details - **Brand:** Fosmon - **Compatible devices:** bicycles, e-bikes, scooters, motorcycles, carts, trailers - **Maximum range:** 90 Feet - **Noise level:** 113 Decibels - **Remote control included?:** Yes ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61k15Hd86rL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/61MHvu482FL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71sMUSHEORL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61qp+8YqpyL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/81MATLbJ4PL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Sensitivity adjustment is not working for me. I follow the instructions, but when I press the button I hear the same 3 pitches.** A: 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. **Q: Is the remote water waterproof???** A: 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. **Q: Will this keep the dogs away when I go fir a walk???** A: 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. **Q: could it be used to prevent catalytic converter thefts?** A: 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Scooter *by K***N on 7 July 2026* Nice & slim , easy set very load piece of mind . Fitted to a moblity scooter which is stored outside under a cover . ### ⭐⭐⭐⭐⭐ Bike *by N***G on 13 July 2026* Hi there, yes it’s very very useful very loud as well. I’ll have to find out how to turn it down a bit but the alarm is very good for the Bike and I’m stuck it right between it very hard to get off as well. Keep up the good work, very good alarm I’ve had these ones before. ### ⭐⭐⭐⭐ Brilliant theft deterrent *by S***E on 22 May 2022* I bought this for my wife's e-bike whilst touring Europe in our motorhome. The device is easy to fit but be sure to use both the double sided tape and zip ties to prevent it from easily being prised often and discarded. It's quite large so you may need to give some thought about where you locate it. Also you need to be sure you leave access to the screw for battery replacement. Otherwise you may have to cut it off and require fresh tape and zip ties to re-fit. Once fitted just remove the plastic battery isolating tab and it's ready to go. Setting is easy once you have read the included instruction sheet. The alarm is really loud!! It sounds a warning blast if accidentally nudged. Move it further and it delivers a continued blast of varying tones that attracts immediate attention. Of course it's not a substitute for a good lock, however if the bike is within earshot during a coffee stop I'm confident enough not to use a lock. I forgot I'd set it on one occasion and the warning blast even made me jump! So pleased with it I've just ordered a second one for my own bike. Only negative is the loop on the remote is made of thin plastic and has already snapped when attached to another key fob. Hence four stars otherwise it would have been five. ## Frequently Bought Together - 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 - Apple AirTag - Motorcycle Alarm Disc Brake Lock, Motorcycle Locks Anti-Theft Security Wheel Disc Lock Waterproof 110dB Alarm Sound with 5ft Reminder Cable Keys and Carry Pouch for Motorbike Bike Scooter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/125839720-fosmon-113db-bike-alarm-with-remote-motion-sensor-bicycle-sos](https://www.desertcart.tn/products/125839720-fosmon-113db-bike-alarm-with-remote-motion-sensor-bicycle-sos) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-12*