Introduce:This laser range and speed finder monocular is a portable optoelectronic device combined a laser range finder, a laser speed finder and a monocular in one.1. High accuracy, short measuring time, low power consumption and automatic shut off for power save etc.2. Measure the speed of fast moving object, and at the same time, can observe the object with great clearness3. The transmission power of this device is very small and no harm to user's eyes, any target can be measured at random. Accurate in measure, light in weight, small in volume. Very easy to operate and carry about.4. The laser range and speed finder monocular can be widely used for travel, sightseeing, golf sports, hunting, camping as well as for any measurement of outdoor projects.5. Dontop optics high quality with best price.Specification:Magnification: 6XObjective dia.: 24mmFocusing: Eyepiece focusingField of view: 122m/1000mMeasure theory: Semi-conductor laser, no harm to eyesMeasure distance: 6m-400mMeasure speed: <300km/hMeasure tolerance: +/-1 m; +/- 0.2% +/- 5 km/hReading: LCDSize: 104X72X41 mmWeight: 185gBattery: CR 2 (3V) ( not included)Modes: Standard, scan, speed three modesBasic speed measure: For objective moving backward or forwar.