The instrument is based on the principle of optical alignment, the use of a semiconductor laser to produce a telescope collimation axis coincides with the visible laser beam can be directly observed by the human eye. The instrument uses integrated body, stable and reliable performance. The instrument uses a semiconductor laser, a small size, light weight, shock-resistant, long life and other advantages. Laser with high brightness, good color and other characteristics. Laser optical axis of the laser system and the telescope instrument boresight strictly concentric with coke, coaxial mapping equipment manufacturing, therefore, when the telescope target, at the destination can produce a visible red spot. The instrument to the point with automatic delay off function, help extend the life of the laser tube surveying instruments, saving battery. By focusing on the point of the laser spot is no need to improve the measurement accuracy. Instrument equipped with a square-shaped laser target users more convenient operation. According to the user's needs can be equipped with a zone plate, installed after the zone plate, at the destination can produce a red crosshair, when measurement is more accurate and convenient. Instrument equipped with a removable filter, remove or install the removable filter mapping equipment manufacturers, brightness telescope field of view is not affected, mounted on removable filter, when you turn the laser eye can be observed through a telescope. The instrument has dial so that a more accurate measurement and calibration. Instrument uses two AA alkaline batteries, two new AA-size alkaline batteries can be used continuously for 2 to 3 hours. Nanfu alkaline batteries are recommended. Small, portable Leica DISTO D2 take the grip ergonomic design is compact, can be safely held in the hand or placed in any pocket. The results show clearly displayed on three lines of the display. Instant in the dark, illuminated display can still easily use to read the results. Simple clever Minimum / maximum measurements, tracking and storage of results make your work easier to measure from edges or corners of the use of flip-style base, you can work in any measurement environment. Quick and easy touch of a button, you can measure distances and calculate the area or volume. Surveying Instrument, surveying instruments, Jinke instrumentation provided by Qingdao Branch of the Instrument Co., Ltd. Instrument Co., Ltd. Qingdao Branch (www.qdjk17.com) strong, credible, in Qingdao, Shandong analytical instruments industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Branch of the Instrument and you hand in hand into the brilliant, for a better future!