The prices of the goods sold in our store are all excluding tax. If you need to open a bill, please contact our customer service!

Product Introduction:

【Product Model】: K4580-Military Green. The product is currently on sale with a price tag of 1 yuan more for the camouflage color.

Product Specification: 85*63*30mm

【Product Weight】: 220 grams

【Product Material】：Zinc Alloy

【Packing Method】：Bubble Bag, Fabric Bag, Color Box

【Packing Information】: 50 pieces per box. All the products sold by our store are priced without tax. If you need a tax invoice, please contact our customer service! 10 pieces per medium packaging.

Construction and Performance: 1. Orientation Measurement Mechanism: Composed of compass, sights, and sights. The orientation scale is divided into 360 degrees, with a minimum grid value of 2 degrees; the inner circle is divided into 6000 mils, with a minimum grid value of 020 mils. The conversion between mils and degrees is shown in the table. Measurement accuracy: plusmn 010 mils 2. Distance Estimator: Composed of sights and sights. The angle between the two tips of the sights and the center line of the sights is 100 mils, and the length between the two tips is 1234 mm. The length between the sights and the sights is 1234 mm, which forms a 101 ratio distance estimator. Measurement accuracy: plusmn 53 degrees 3. Elevation Angle Measurement Mechanism: Composed of elevation scale, elevation swing, and flat mirror, etc., with a range of plusmn 90 degrees. Measurement accuracy: plusmn 25 degrees 4. Coordinate Ruler: Composed of a vertical side ruler and two short sides, with a ruler length of 120 mm. Measurement accuracy:plusmn05mm operation: 1. Measure bearing angle: Unfold the compass, rotate the bearing frame to align the scale lines on the bearing glass with the direction indicator, place the plane mirror at an angle of 45 degrees, look through the sight at the target with one eye, and read the bearing angle from the position division above the N pole of the magnet on the reflection of the plane mirror. Then, rotate the bearing frame with your right hand to align the scale lines on the bearing glass with the N pole of the magnet, and the angle between the direction indicator and the scale lines on the bearing glass is the bearing angle of the target (calculated in a clockwise direction). Open the compass, mark the map (no need to mark the map when measuring distance), insert a needle at the baseline point on the map, rotate the compass to cut the target point with the side scale, and read the bearing angle from the baseline to the target point. 2. Mark the map: Unfold the compass, rotate the bearing frame to align the scale lines on the bearing glass with the direction indicator (note the correction for magnetic deviation), place the compass flat on the map, with the sight end facing the north pole of the map, make the coordinate ladder scale length cut the magnetic meridian on the map, rotate the map to align the N pole of the magnet with the scale lines on the bearing glass, and the map is marked. 3.To determine the direction of march towards the concealed target: spread out the compass on the map, and make the measuring scale pass through the starting point of the map and the target. At this time, the direction indicator indicates the direction you should march. Rotate the direction frame so that the (S, N) directions on the direction glass match the (S, N) directions on the map, and then record the azimuth reading indicated by the direction indicator. Face the direction indicator and pick up the compass to rotate the body, so that the magnetic needle N pole aligns with the scale lines on the direction glass. At this time, aim forward through the sighting aperture, and all objects (such as forests, houses, etc.) on this line can be used as auxiliary targets for the direction of march. After recognizing the auxiliary target, you can march forward. Close the compass and put it in the bag, but do not rotate the direction frame. When you reach the auxiliary target, you can find a new auxiliary target to continue marching until the destination. Along the way, you should frequently check the direction reading. 4. Estimate the distance between the known target and the standing point: ① Aim at the target with the left and right tips of the sighting and the sighting, according to the multiple times of the interval occupied by the width of the sighting between the left and right tips, according to 10"1:1 ratio formula to estimate the distance to the target. The distance from the target to the standing point (m) x10 The target interval width (m) x10 The target interval is the multiple of the width of the two tips of the crosshair. For example: There is a road parallel to our position in the front, and we want to know the distance between the road and the position. Along the road, there are electric poles with a distance of 50 meters between them. With the distance estimator, it is measured that there are 5 poles between the left and right tips, that is, every two pole intervals account for 14 times the distance between the left and right tips. According to the proportional formula, the distance between the road and the position is 50x10x42000 The price of the goods sold in our store is all ex-tax prices, and if you need a bill, please contact the customer service! Meter ② Use an auxiliary point to determine the distance to the target Aim at the target with the sighting crosshair, rotate the direction frame to make the scale line aligned with the magnetic N pole, and record the azimuth reading indicated by the direction indicator. Then, turn to the right or left at a right angle direction (that is, 15" different from the original azimuth reading)00）Find an auxiliary point, use the step measurement method or other methods to measure the distance from the auxiliary point to the standing point. At the auxiliary point, use the compass through the sighting to aim at the original target, and rotate the directional frame to make the scale line align with the magnetic needle N pole, record the directional indicator reading. According to the difference between the two direction angle readings and the distance from the standing point to the auxiliary point, you can find the target distance in Table 2. If the difference between the two direction angle readings is 750 (i.e., 45 degrees), the target distance is equal to the distance from the standing point to the auxiliary point. 5 Measure pitch angle: Place the back face down, aim at the target with the sighting, and read the pitch angle reading reflected by the plane mirror; or place the back face on a certain plane to measure the angle of inclination of the plane. 6 Measure height: Use the map and the height gauge to measure the height. Find the horizontal distance from the standing point to the target on the map, measure the pitch angle with the compass, and find the height with the height gauge, or calculate it with the trigonometric function. Example: Find the height from the bottom of the mountain to the summit. The horizontal distance from the summit to the standing point on the map is 100 meters, and the elevation angle of the summit measured by the compass is 40".deg， then check the altitude table at 100 meters corresponding to 40deg, the height can be 8391 meters. 7 Measure the mileage between any two points on the map: For maps with different scale, the relationship between the square mile grid side length and actual distance can be calculated using the following formula: 125000 map: Distance (measured in millimeters) X 100 (meters) 150000 map: Distance (measured in millimeters) X 100 (meters) 1100000 map: Distance measured in millimeters X 100 (meters) All prices for the goods sold in our store are ex-tax prices, and if you need to open a bill, please contact the customer service! X 100 All prices for the goods sold in our store are ex-tax prices, and if you need to open a bill, please contact the customer service! 100 All prices for the goods sold in our store are ex-tax prices, and if you need to open a bill, please contact the customer service! 8Magnetic Declination Measurement: ① The direction of the Earth's magnetic poles is not exactly on the true north-south axis, so there is a deviation angle between the direction indicated by the compass and the true north-south direction. This deviation angle is known as the magnetic declination, and its value varies from place to place. When not requiring precise measurement, one can consider the direction indicated by the compass as the true north. When requiring precise measurement, one should first check the local magnetic declination in a book, and then calculate the true north-south direction based on the direction indicated by the compass. For example, in Changsha, when using a compass, the magnetic declination of 2deg41 (W) is checked from the appendix table four, which means that the direction indicated by the compass in Changsha is to the west of the true north by 2deg41. ② Method of calculating magnetic declination in any place. On a clear night, spread out the compass, rotate the direction frame so that the (N) on the direction glass is directly facing the direction indicator. Use the sight, the sighting post, the leveling glass, and the night light markers to face the North Star, without changing the compass direction, place the compass flat, and the reading indicated by the compass pole is the local magnetic declination. Maintenance and Maintenance: 1Do not place the compass near ferromagnetic objects, high-voltage lines, or electromagnetic devices, as this may cause errors and reduce the compass's sensitivity. 2 When not in use, store it in a well-ventilated and dry place to prevent mold. 3 Do not twist or bend the level and reverse-text table labels, as this may affect their accuracy. 4 If the surfaces become dirty, use a white flannel to gently wipe the surface to maintain its cleanliness.

Features:

Adopting a damping oil plate design, the product's stability is stronger; the product is fully sealed, waterproof; with a leveler, it improves accuracy and greatly reduces errors!