The Leica Rugby 610 Red Rotating Laser is part of range of lasers that are particularly suited for the construction trade. Whether concrete forming, pad placement or framework levelling, the Rugby 610 is the ideal solution for any interior and exterior levelling project. The Leica Rugby 610 rotary laser level offers increased productivity combined with the ultimate ease of use. One button interface makes the operation of laser extremely easy and absolutely fool proof. No training and no preparation is required - get right to work. The laser includes a height alarm which will stop the laser rotating if it is knock while the robust housing, made from co-molded rubber and high-impact plastic, protects the laser from the rigours of the worksite and when being transported. The laser also incorporates IP67 rating water and dust protection ensuring that the laser can withstand the elements. With a rotation speed of 10rps and 500m range, the class 1 red laser has a self levelling accuracy of 2.2mm at 30m. When used with Red Eye 120 Receiver, the range increases up to 800m. This Alkaline Version works with 4x D-Cell Batteries