Features:
1) Sends out narrow beams of sound waves that "bounce" off solid objects
back to the E-tape and then converts elapsed time into a distance
measurement and display it on the LCD
2) Measures from 3 feet up To 60 feet (1m-18m)
3) Displays measurements in feet or meters
4) Memory compartments to store 3 separate measurements
(length, width, height)
5) Computes area and volume
6) Built-in laser pointer
7) Auto shut-off
8) Low-battery warning