GC3007 Ultrasonic Digital Distance Meter
Features:
Range from 3ft~60ft (0.9m~18.3m)
Meter or feet conversion
Accuracy of 0.5% +/- 1 digit
Three memories for length, width, and height measurements
Addition, Subtraction, Area, and Volume calculation by touch of relative buttons
Laser pointer
Auto power off
LOW BATT display to remind you of changing the battery
One 9V battery required (not included in the product)