Sherlock is a GPS anti-theft device for bicycles.
Sherlock must be turned ON every time the bike is parked, standing close to the device.
Once activated, any movement triggers the theft mode: an immediate notification is sent to your smartphone and GPS tracking starts. The app turns orange while in this mode.
When you want to ride, you have to stand close to Sherlock and turn it OFF before touching the bike, in order to avoid false alarms.