Review on Crystal Vision Anti Theft Loud 130db Alarm Heavy Duty Bike Lock: Weather Proof, Multi Purpose Security Solution by Devin Tanner

NOT WEATHER! worked until it rained. Barely lasted 6 weeks. I will not buy again. Rip off. I think there is a better design for the battery compartment. The screw is small and difficult to screw back in. It's best to start with a throw and a prayer. The width of the U-bracket is smaller than I expected. Can't get around a 4" hoop. The alarm is loud and very easy to turn on. Softly 4 beeps begin. If you play with her, you can block her without setting an alarm. If you want to activate the alarm, unlock it simple and lock it again.When you hear a sound similar to a car alarm sound, it will lock/unlock 2 different sounds, just like a car.Double = locked and armed.How to lock unguarded so I can use the attachment and can drive in half position without a key in the lock.