The Stabila LD250BT Laser Distance Measurer is compact and easy to use with integrated Bluetooth® Smart 4.0 technology. A free Stabila Measures app lets you transfer measurements wirelessly to a smartphone or tablet, directly to photos or drawings of the site. The four functions and 50m range cover most requirements. The LD250BT measures length, area and volume; continuous measurement allows movement towards or away from an object to a desired distance. The large digits on the display make it easy to read. The impact-resistant housing has a shock-absorbent soft grip cover. This is a robust tool, ideal for use on site or in similar situations. Supplied with two AAA batteries.