Almost false alarm proof, an extension cord-like cable is threaded through the steering wheel of your boat and similar points on other watercraft, boxes, closets and other valuable assets on the dock. This cable starts and ends at a tamper proof box bolted to the dock. The box protects a wireless transmitter with a range of up to a mile where it is monitored by a control system in the house that is armed and disarmed via a touchscreen and smartphone app. The box can be bypassed with a key. An alarm will activate a siren/strobe on the dock, notify you, and notify a professional monitoring center.