Calculated Industries 3344 is an ultrasonic distance measure with laser aimer/pointer. It can be used to calculate length, area, and volume of objects. The device has a range of 20" to 50' (0.5m to 15m) and an accuracy of 99.0% (+/- 1%). It is powered by 2 CR2032 Lithium batteries and has a liquid crystal display. The device also has a built-in laser pointer that can be used to mark targets or as a presentation pointer. The Calculated Industries 3344 is a versatile tool that can be used for a variety of tasks, including home improvement, construction, and surveying.