Apresys Pro660 Laser Rangefinders Specifications: Brand:Apresys Type:Binoculars/Laser Rangefinder Model #:PRO660 Functions: Rangefinder with Monoculars Magnification 6x Objective Lens Diameter 24mm Measurement range 6-660m A Field of View 7° ; Accuracy ±1 M Exit Pupil Diameter 3.9mm Operating Temperatures -20~ 50 ? Measuring Time of Speed: 0.3 ~ 4s Battery CR2 / 3V Net Weight 185g Dimensions 104*72*41mm Mode: Scanning Mode, Build-in Raining Mode, Build-in Reflecting Mode Measurement Capability: Reflector: 750m Buildings:600m Tree:480m Deer:300m Flag:275m Purpose and Usage Range APRESYS PRO660 can be widely used in mapping and surveying, electric power, security, marine observation, environmental protection , forestry, hunting, military, golf courses, outdoor exploration, etc. and many other fields. Apresys improve working efficiency and outdoor life with quick and accurate measurement. Features: i. Measuring the distance of stationary and slowly mo ving object within a certain range and can, at the same time, observe the object with great clearness and the data can be saved. It possesses many advantages, such as high accuracy,short measuring time, low power consumption and automatic shutoff for powe r saving etc. ii. The transmission power of this device is very small and no harm to user`s eyes, iii. Target can be measured at random, easy to operate iv. Compact body, accurate measurement, Light weight, small volume, Short blind region v . One piece of CR2 battery is used which can be bought and changed easily vi. Unique serial number, 1 year free service after-sale