Stanley 0-77-018 IntelliMeasure® Distance Estimator 12m INT077018

Can measure length, area and volume.
Large, easy-to-read LCD screen that shows either metric or imperial measurements.
Also displays the last three measurements for quick reference.
Intuitively designed toggle button lets you effortlessly switch between length, area and volume measuring modes.
Automatically calculates area and volume.
Manual addition mode for specialised calculations (i.e., perimeter).
Accuracy: ±5mm.
Operating Range: 12m (40ft).
Power: 2 x AAA batteries (supplied).