The STANLEY® TLM 330 True Laser Measure allows for rapid and precise one person operation over long distances with easy to take measurements in busy or out-of-reach areas. It can measure length, area and volume up to 100m. Also has a Pythagoras function for remote measurement of high walls, Min./Max. tracking and trapezoid measurement for accurate layout. The back lit, 3 line display provides visibility in all working conditions and will store the last 20 measurements taken for reference. It also features a handy addition/subtraction calculator and a timer function with one person operation for greater productivity. The level ensures measurements are extremely accurate and it has a fitting for a camera tripod. Specification: Accuracy: ±1mmOperating Range: 0.5-100mPower: 2 x AAA batteries (supplied)Operating Temperature: -10-50°CAdditional Information:Accuracy (±mm/m): 1Max. Range (m): 100