Germany Hilti PD42 handheld laser rangefinder type PD42 PD40 addition to all the features also has the following features: more features - volume measurements can be performed, accumulating multiple measurement area, more convenient and practical - have maximum / minimum measurements, facilitate the identification and verification of parallel lines straight angle - triangulation function (Pythagorean theorem), and there are three kinds of measurement mode laser rangefinder manufacturers, easy to measure inaccessible distances - delay measurements (up to 20 seconds), data storage ? function (the last 30 sets of data) is more convenient to use - the built-in laser rangefinder binoculars model, suitable for long distance and outdoor measurements - the built-in vertical horizontal bead, improve vertical measurement accuracy - there are four measurements starting to choose ( before and after, the extension piece, the center of the tripod threaded connection) - standard tripod screw (1/4 ') interfaces for precise measurement built-telescope maximum and minimum estimates, put the line features standard tripod interfaces for precise measuring three Indirect measurement of the actual measurement applications kinds AR891 80 meters Laser rangefinder Features laser rangefinder is a distance to the target using a laser measuring instrument accurate. In operation the laser rangefinder to the target emit a very fine laser, received by the photoelectric element of the laser beam reflected from the target range finder, a timer measuring a laser beam emitted from the laser rangefinder to the reception time of the brand, from the calculated distance to the target to the observer. Laser rangefinder light weight, small size, simple operation fast and accurate, the error is only one fifth to one percent of the number of other optical rangefinder, which is widely used for topographic survey, battlefield measure, tank , aircraft, ships and artillery to target distance, measure the height of clouds, planes, missiles and satellites and so on. It is to improve the high-tanks, aircraft, warships and artillery accuracy of important technical equipment. Technical parameters Technical parameters Measuring range 0.3 ~ 80m measurement error ± 2mm British public have a resolution unit conversion 1mm Laser class Class 2 laser power and wavelength P ≤ 1mW λ = 635nm low power computing tips triangle backlit display with continuous measurements have set benchmarks to measure There length superimposed area \ \ volume calculation data store 30 groups Packing Power AAA * 3 Battery Product Weight 230g Product Size 132 * 63 * 34.5mm Packing Standard carton box packaging capacity 20pcs Standard Carton Size 62.5 * 45 * 28.5cm Standard Carton Gross Weight 18kg [Shenzhen] rangefinder, laser rangefinder models, laser rangefinder provided by 星枫 instruments. Welcome to consult Nanchang 星枫 Instrument Co., Ltd. (www.xingfengyiqi.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Zhengjing