Patent 9188441 was granted and assigned to Bosch (company) on November, 2015 by the United States Patent and Trademark Office.
A theft detection method for a rotary laser tool includes using a motion sensor incorporated into a base unit of the rotary laser tool to detect movement of the base unit, monitoring duration of movement of the base unit as indicated by the motion sensor using a control system of the rotary laser tool, and activating an alarm indicator in response to the duration of movement being greater than a predefined threshold.