The Danubia RFS-700 Laser Rangefinder and Speedfinder is a compact 7X monocular, has an inbuilt laser rangefinder which makes taking accurate measurements really simple. It can be used for professional surveying use, sporting use or when out wildlife spotting. Excellent accuracy within 1m for up to 600m, there are two automatic methods of determining the distance to ensure this accuracy, standard & scan; the measurement being made within 0.3 sec. The difference between this RFS—700 Danubia laser rangefinder and the Danubia RF—600 is the ability to measure the speed of approaching subjects. It is powered by a single lithium battery, with very low power consumption and the readout is really easy to view. It is possible to choose between imperial or metric display and the whole unit can be used down to a temperature of -10 degrees, The difference between this and the RF—600 is the ability of the unit to measure the speed of approaching subjects. The lens elements are all fully coated too, allowing for clearer & more contrasts viewing with lessened flare when looking towards bright objects of for contre—jour viewing.