Bike Alarm for eBike, 120dB Anti-Theft Alarm with Remote for Bicycle/Electric Scooter/Motorcycle/Moto, Wireless Motion Vibration Sensor Antitheft Alert System with Warning Light

The media could not be loaded. This alarm, though very small is size, is exceptionally loud! It can be used on not just bikes but any sort of precious item that has a risk of being stolen, from tvs, to motorcycles to scooters to even a backup alarm for your car if Place correctly. There are a variety of sensitivities to choose from so your secured item doesn't automatically start blaring once losing contact from the sensor so it will take time to figure out which one is the best for you. They're remote control is simple to use and actual alarm itself is versatile and how it can be attached to your item, whether it be directly via adhesive or zip ties. I can only think of one thing I've had in close to this in terms of loudness and that was a personal safety alarm. Once this goes off, you should hear it, and even if you don't, it is very likely that the thief will be spooked by not only the sudden booming noise but the idea of it arousing suspicion as it will take more than a second to take the alarm off. Well worth the price for such an effective and easy to use gadget. I have had bikes lifted right off of my porch before and wish I'd had this years ago!

The media could not be loaded. A few minutes were all that was required to complete the installation procedure, which was quite simple. There are detailed instructions included in the box, and all of the components that are required are included. Using the adhesive tape and zip ties that were supplied in the package, I was able to attach the alarm to the frame of my electric bicycle, which serves to keep it firmly in place. Due to its small size, the gadget is not only effective but also difficult to notice. I was impressed by how loud the alarm was, which was 120 decibels. I was taken aback by the sound when I first tried it out, which gave me confidence that it was successful in discouraging others who would steal from me in the future. One of the most impressive features of the motion vibration sensor is that it allows for the sensitivity to be calibrated. When I set mine to medium sensitivity, it works flawlessly for detecting any unwanted movement without generating false alarms from little vibrations. I have found that this setting works nicely.

Says in product description that battery lasts a year. Mine lasted about 3 weeks before the “low battery” warning alarm stated going off around 1am one night. The “low battery” beeps are extremely loud and not something you want waking you up in the middle of the night. Press the “volume” button to mute it of this happens until you can change the batteries.

The media could not be loaded. I've been using this bike alarm for a few weeks now, and so far, it's been a pretty solid addition to my bike security setup. The alarm itself is loud - like, 120 decibels loud. That's about as noisy as a jet engine, so it definitely grabs attention if someone messes with my ride. The remote control is a nice touch. I can arm or disarm the alarm from up to 328 feet away, which comes in handy when I'm parking my bike in a crowded area. No more pushing my way through a bunch of people just to turn off a screaming alarm! Installation was a breeze, even for a non-mechanically inclined person like me. The instructions were clear and I had it up and running in about 15 minutes. Just a heads up - the adhesive tape that comes with it is really strong, so make sure you've got the placement right before you stick it down! I've tried it on my mountain bike and my city cruiser, and it fits well on both. The alarm housing is pretty unobtrusive, so it doesn't mess with the look of my bikes too much. The build quality seems sturdy enough. I haven't had any issues with it malfunctioning or falling apart, even after a few rainy rides. Time will tell how it holds up in the long run, but so far, so good. Now, this alarm isn't a foolproof theft prevention system. A determined thief could still find a way to snag my bike if they really wanted to. But for the average opportunistic bike nabber? The loud siren and flashing lights are likely enough to make them think twice. One small quirk - the remote control feels a bit flimsy, like it might crack if I drop it too many times. But it hasn't given me any problems yet, so I can't really complain. Overall, if you're looking for an affordable, easy-to-use bike alarm to add some extra peace of mind to your rides, this one is worth checking out. Just remember, it's a deterrent, not a guarantee. Stay safe out there, fellow cyclists!​​​​​​​​​​​​​​​​

I thought maybe it was a low battery warning, but I tried three sets of new batteries and same problem. I can still use it by turning the volume up after arming and turning the volume to silent after disarming, but I shouldn't have to do that and at night cycling through the volume levels needlessly disturbs people who happen to be nearby. Time to shop for a different brand.After writing this review I was contacted by the seller who offered to refund the device even though the return window has expired. But although this defect makes it impractical as a bike alarm, I can still use this to protect valuables on my front porch that rarely need it to be in the disarmed state, so it’s not useless and I’m keeping it just for that.

I like that this alarm has three sound levels, so I can adjust it depending on where I park my electric scooter. I’ve got it set to the second level on my apartment door handle. I got it for my e-bike and found a good spot to mount it. I tested it out in my driveway, and even a small shake of the bike set off the alarm. After shaking it a bit more, the full alarm went off—super loud! I could easily turn it off with the remote. It’s currently set to the highest sensitivity, which might be too much on a windy day. The sensitivity adjustment is handy; right now, even a light touch sets it off, and moving the handle definitely triggers it. Every place is different, but the second sound level is pretty loud. Overall, it’s a solid basic anti-theft device. If you’re using a bike rack, just set the alarm when you leave and turn it off when you come back, and do the same when you lock up your bike while riding.