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Hangguang Compass Firm 13yr.
Contacts:Yang Meili Chat
Mobile:86-057985166462
E-mail:www.412506783@qq.com
Function: Compass/ Thermometer/ Map Distance Measurer/ Key Hook
Name: Map Distance Meter
Material: Engineering plastic shell
Weight: 26 grams
Features:
This compass comes with a map distance measuring instrument. When rolling the wheel between two points on the map, the measuring pointer will rotate accordingly. By recording this value in proportion to the scale, multiplying by the proportional coefficient, one can obtain the actual distance between the two points. This is much more accurate than measuring the straight-line distance with a ruler.
Four types of scale mode
1:1 original scale (outer circle), 1:50,000, 1:20,000, 1:5,000, you can choose different scale rules according to the actual length. Just move the front sliding wheel of the body along the path from the starting point to the end point on the map, and then measure the actual distance between the two places according to different scale standards.
Compass usage common sense:
The compass must be held horizontally and kept away from the following items to prevent the needle from becoming disordered: the compass should be kept away from iron wire mesh, high-voltage lines, cars and airplanes, and items containing magnets, such as magnetic containers.
The compass must be held horizontally and kept away from the following items to prevent the needle from becoming disordered: the compass should be kept away from iron wire mesh, high-voltage lines, cars and airplanes, and items containing magnets, such as magnetic containers.
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