バイク盗難防止に使ってますが、とても良いです。かなり音も大きいので、予防になるとおもいます。たまに何もないときに音がしますが、まぁ問題ないです。あと、起動と停止のときの音も大きいので、周りがビッグします。

大型バイクイタズラ防止用に購入。

取付も場所を選ばす容易に取付出来ました。

未だ使い始めて僅かですが満足中。

この価格であれば満足です。あとは耐久性ですかね。

安いのに普通に使えてました。少し揺すったりすると警告音がなるしよかったのですが電池が半年しかもたず入れ換えようと外したら、もう要らないかなって気分になり、もうつけてません。

誤作動が無いのでとても良い

感度良好で触るとアラームが鳴る。

結束バンドのような紐で自転車に固定するので取り付けはスムーズにできた。

しいて要望を書くと、紐で取り付けなので走行中に多少カタカタ音が鳴る。金属製の板にボルトで固定するようなタイプだと尚良いと思った。

物が小さいのでバイクに忍ばせるのに便利。音も十分。購入して良かったです

走行中にビービーと音が鳴りうるさかった。

電池交換をしても変わらなかったのと、ガレージ保管の為あまり使い道が無いので外しました

屋外保管などでのセキュリティ面ではちゃんと機能します

These are good stick them anywhere loud and battery last long

Used these on a uhaul truck when I was traveling across the country for an extra piece of mind. One was taped at the top inside of the cargo rolling door and the other was set just in the driver's door. Out of the box default settings were good enough on volume and sensitivity. Even though the one on the door fell several times to the metal bed and to the ground it survived fine. It was sensitive enough that if anyone played with the lock or latch at the bottom of the rolling door on the moving truck it would still detect it and give a warning ring from the top of the door.

One in the driver's door would not detect if passenger door was messed with however, but the ear shattering noise in the enclosed cab would hopefully spook someone if they did get to the driver's seat from the other side.

I felt this might be a good enough deterrent to help give me that extra bit of security during my move.

Size was fine, not too big considering loudness and battery life expected.

Remote was mostly easy to understand with the instructions. Instructions themselves could be more clearly written for English, but with enough squinting and slow reading you can usually understand them for handling other functions.

Would have to position myself to ensure both alarms caught the lock or unlock sound properly, but I do understand my case is niche and would consider that as only food for thought on distance and blocking of the remote signal.

May use these for bicycles in the future, not sure, but did the job I needed it to.

Pros: very loud which is most important for anti theft, and vibrations threshold are sensitive

Cons: not the easiest to understand how to program settings

Additional detergent, load and remote is cool but alarm stops after only 30 seconds and can be easily take off. I’ve hidden these inside motorbike and wheel locks so that they can’t be accessed… which makes it much harder to get to

Probably works good for a bike.

I put this in the compartment of my car's side doors as an extra safety alarm from break-ins and Catalytic converter theft. Takes too long for the alarm to activate. Needs to be shaken pass the first beep, and second mini-alarm, for it to trigger the actual alarm. Wish there was a setting to change the alarm to trigger with single movement.

It's decently loud when activated outdoors. Gets quite muted inside a car.