Stainless steel compass compass compass outdoor Mini diameter 75mm

[name] large compass

[material] stainless steel metal shell

[Specification] diameter 75mm, high 12mm

[weight] 100 grams

[carry] handheld

[display] compass

[function] basic orientation

[usage]

stainless steel scale meaning: digital compass

"south" is 180

"North" is the 0 (or 360)

"East" is 90

"West" is 270

English letter: meaning

East E (East)

West W (West)

South S (South)

North N (North)

NE SE SW the northeast, Southeast, southwest, northwest of NW

red arrows point to the "south" in the direction of rotation of
compass, when the pointer stabilized, red end always refers to the north, and then gently rotate the compass, the letter "N" and the red arrow (direction), then contact the compass direction of other letters is corresponding to the actual range, so you can distinguish the four corners of the world, and also, determine the angle in any direction and North or the other direction, the dial can be read.

[method]

The first step: the compass horizontally, still a red compass, pointing direction is "south"

The second step: slowly turn the compass, until the red end and the scale of the "south" coincidence

The third step: the direction of then dial marked direction is the actual

Note: magnets and iron objects will affect the accuracy of the compass, please do not be near a magnet compass (such as audio speakers) or iron (tool) articles.

[] maintenance

1. use and do not close to the magnetic compass placed objects, high voltage wire and electromagnetic device

etc, so as to avoid errors and reduce the sensitivity of the compass.

2. when not in use, should be placed in ventilated, dry place, so as not to mold.

3. the surface dirt, white cloth to wipe the surface available, in order to maintain the smooth surface.

[on] compass

compass is used to determine position of a simple instrument. The predecessor of the compass is one of the four great inventions of the ancient China ian. The main components are mounted on a shaft can freely rotate the needle. The needle can be maintained in the tangent direction of the magnetic meridian in the magnetic field. Needle points to the geographical North pole direction can be identified by this performance. Used in navigation, geodesy, travel and military affairs.

earth is a big magnet, the geomagnetic South Pole in the geographic north near the geomagnetic north near Antarctica in geography.
compass magnetic force in the earth's magnetic field effect, so it will guide the north end end. Compass: history of attention of solar activity, has the title
compass -- areas of the Northern Hemisphere from the magnetic north pole is close, and professional graphics need to consider the geographic north and magnetic north pole angle (declination), so now most of the compass call. The two is a thing.

Be sure to hold the compass level, in order to avoid the occurrence of needle disorder, should keep a certain distance with barbed wire, high voltage wire, automobile and aircraft and containing magnetic objects.

[knowledge] excerpts compass

compass refers to the geographic South Pole is the geomagnetic north compass is used to determine position of a simple instrument.

compass predecessor is one of the four great inventions of the ancient China ian.

main components are mounted on a shaft can freely rotate the needle.

needle can be maintained in the tangential direction of the magnetic meridian in the magnetic field.

needle points to the geographical North South direction can be identified by this performance.

commonly used in navigation, geodesy, travel and military etc..

The invention of the compass is our working people, understanding of the magnetic objects in the long-term practice results. Because of productive labor, people are exposed to magnetite, began to understand the magnetic properties of . It cited the first to discover the magnetic properties of iron. later found that the directivity of the magnet. After many experiments and research,

finally invented the compass can be useful.

The direction of the principle compass

earth is a big magnet, the geomagnetic South Pole in the geographic north near geomagnetic north near Antarctica in geography. The compass in the earth's magnetic field by magnetic force

role, it will guide the north end end.

[operation]

1. azimuth measuring

launched a compass, which makes the scale and direction of rotation of the orientation frame index range on the glass phase of , will head up the diagonal mirror (45 degrees) at the target by monocular sight, from the flat mirror to see needle Arctic on anti card range partition table, can be read out, azimuth. Then turn the scale line azimuth orientation frame glass and magnetic needle polar alignment, clamp the directional index and range glass scale line horn is direction angle (clockwise direction calculation).

open compass, marking the map (range can be calibrated on the map, map) based on time inserting a needle, the ruler edge rotation compass tangential to the target point, to judge the read-out reference point to the target point azimuth.

Calibration of 2. map

launched the compass, the direction of rotation frame, the scale line box on the range and direction of the word refers to standard alignment (note declination correction), compass flat on the map, quasi star map end toward the Arctic, coordinate foot ladder and map the magnetic meridian tangent, rotation map make the needle pole alignment the scale line range on the glass, the map is calibrated.

[introduction] compass

compass department senior professional geomancy compass, is any a Fengshui enthusiasts first compass, will Feng Shui required content of all show, making precise material quality, have a certain weight, feel good, is a good tool for Fengshui enthusiasts heart it . Easy to carry, elegant style, is a necessary tool of building, surveying and professionals.

"compass" is also called "compass", is an important tool for the Chinese Ching feng shui master of the expert towering. Today, not only in the world of overseas Chinese Fengshui popular, but also by foreigners' attention. People often have to turn down the compass najib. No matter any martial art of the compass, with a large number of two Yin and Yang, can be said to be a very powerful. Compass is the power of with congenital acquired gasification invisible evil, it has three properties: the best points out the house and fortune.

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Product features

High magnification , long-distance observation

- advanced optical system - HD resolution

Exquisite and durable material, , built-in infrared auxiliary lighting device

Reliable, easy operation and strong , the warranty period of one year, life-long maintenance

Product specifications

Magnification 3

Lens system 50mmF/1.2

FOV at distance 100m/110yards, m 19/63

Field 18

1.5 to infinity focusing range

Lens diameter 44

The weight of 530

The size of 183X81X61

The observation distance 200/150

The pupil diameter of 6

Diopter +4/-4

Pupil distance 15

The power of AA battery (one by 1.5V )

Battery life Up to 20

Battery life Up to 60

IR power 25

The wavelength of IR 850

The effective distance of 25 IR

Waterproof standard IPX4

Humidity 93

The operating temperature of -30 DEG to+45 DEG

The storage temperature 0 ~ to+60 ~