The Stanley Intelli Tools TLM 65 Laser Measure can measure length, area and volume up to 20m. With both metic and imperial readings. It is ideal for DIY use and can be used like a tape. With a compact design that is easy to store and simple to use. Specification Accuracy: ±3mm. Operating Range: 0.5-20m. Power Supply: 2 x AAA Batteries (Included).