Hi-grade Stainless Steel Compass

Material stainless steel size 7.8cm in diameter and 1.3cm in thickness it is a high-grade compass, extremely has the collection and practical value. travel/camping/ adventure/feng shui master lovers' good choice with easily use and operation Taken the azimuth measurement: Makes a compass, rotating bearing box bearing glass are relatively, the scale line, and direction of the index put (45 °) the head-up mirror inclined monocular by accuracy aiming target, see magnetic N pole from the smooth inspect mirror reflection bearing partition on the word table card, can read the target azimuth, and then turn the bearing box with his right hand on bearing glass scale line aim with the magnetic N pole, the direction indicator and azimuth Angle of glass scale line between is the target azimuth (clockwise). Good open ones, calibration map (range not calibration map), there is a reference point on the diagram view, turn the ones, make feet side edge cut in the target, can be of reference point to target azimuth. Taken the calibration map: A compass, rotating bearing frame, make the bearing box and direction indicator on the scale line on the word (note the magnetic declination correction), put behind the flat map, thumb side toward the map in the arctic, the coordinates of ladder feet long and the magnetic meridian tangent maps, the map make the magnetic N pole alignment is rotated the scale lines on the glass, the map that has been calibration. Maintenance: 1. Don't near the ferromagnetic objects, use and placed behind the high tension line and electromagnetic devices, etc, so as not to cause the error and reduce the sensitivity of the compass. 2. When not in use, should be placed in ventilated, dry place, avoid mildew. (Whole saler are welcome).
Author: other
Brand: Other ..........call :018585856660