Strong alloy construction and a piercingly loud 120 decibel alarm make this disc lock a remarkably effective way to protect your vehicle. Shock & motion sensors are linked to a sophisticated microprocessor, with any significant movement a 120dB alarm powered by a single CR2 long-life lithium battery will sound, attracting attention to the vehicle immediately. All electronics are housed in a replaceable alarm module. This model includes one main key with a built in LED, two spares, and a unique tool to access the battery. We have had really good success with these alarms, often bringing them on trips or when we are parking in unfamiliar areas.
*We strongly recommend using with a Disc Lock Reminder Cable