The Stabila LD 520 Laser Distancer is a compact measuring device with easy to operate measuring functions. Including: length, area, volume, timer, calculator, indirect distance, inclination, triangular area measurement, continuous measurement, indirect height measurement, inclined objects, trapezoidal measurement, elevation profile measurement and stake-out function. It also has a memory function that stores and recalls the previous 30 measurements. Has a digital target locator's using a built-in camera with crosshairs and allows distances of up to 200m to be measured. The 360° inclination sensor provides flexible measurement from any position (displays 180°). Allows absolute horizontal measurements to be made and is also the basis for several new functions. It has a 61mm colour display with a 4x zoom and high resolution for pin-sharp images even in strong light. A built-in calculator that enables measurements to be multiplied or divided by fixed values (e.g. hourly rates or material costs). This provides usable calculated figures, to make meaningful quotations on site. With a robust, impact-resistant housing and a shock-absorbing soft-grip cover. In addition, it has IP54 class protection against rain and dust. Integrated Bluetooth Smart technology enables measurement data to be wirelessly transferred from the laser to a smartphone or tablet. The free 'Stabila Measures' App allows measurements to be transferred directly to photos of the building site or drawings. Specification: Accuracy: ±1.0mm.Operating Range: 0.05-200m.Power: 2 x AAA batteries (supplied).Protection Class: IP54 (dust & rain).Laser Class: 2.Laser Wavelength: 635nm.