Map Scale Compass DC40-A

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1, professional usage: orientation, distance measuring, measuring slope, azimuth and pitching Angle measurement,

2, high quality compass with neck rope, portable and rugged
3, ACRYLIC material, about 2mm thick
4, Damping Dial: to keep the stability of the pointer, more suitable for outdoor
5, Accuracy: accurate and clear, there were 360 degrees azimuth Angle, outer ring is 64-00 system, Liquid filled in the compass for reliable readings.

Product details

Model: DC40-3A

Name: Professional map compass, ruler compass

Product Origin: China

Supply Ability: 10,000 pcs/month

Minimum Order: 50 pcs

MOQ for OEM package: 500pcs

Product Size: 126*60*10 (mm)

Payment term: TT/ LC

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Q:What do you need to test for GPS?
6 antenna type to give you a good positioning, GPS receiver requires at least 3 ~ 5 satellites are visible. If you are in a canyon or on both sides of the street, or in the dense jungle, you may not be able to contact with enough satellites, so that you can not locate or only two-dimensional coordinates. Also, if you're in a building inside, you may not be able to update your location, some GPS receivers have a separate antenna can be attached to the windshield, or built-in active antenna, or an external active antenna can be placed on the roof, the receiver which helps you get more satellite signals the. 7 other indicators to buy GPS equipment, according to the needs and use of the environment, size, weight, waterproof, shockproof, dustproof performance, high temperature resistance, power consumption and other indicators should be taken into account.
Q:Handheld GPS locator measuring accuracy is about how many meters?
The higher the accuracy, the higher the price. You can consult the Haida official website mobile MGIS mall
Q:I am a handheld GPS precision is low, how to use to be able to improve certain accuracy
If you can join the CORS network, the accuracy of decimeter to centimeter level.
Q:GPS Mu meter which brand is good, handheld high-precision land area measuring instrument
A German born mu can also recommend a good precision measuring instrument.Simple operation, the screen is large, a few buttonsBoot, and then look at the star almost, to find a field, start and then click on the end of a circle, out of the number ofElectricity can alsoPrecision mody... With a special RTK or not, but what is sure to measure a circleFlat measurement of quasi accurate, biased on what is almost, it can be accepted
Q:Handheld GPS positioning, can be directly uploaded to the computer,
7 support for added map marking, distance measurement and area measurement, location name display.8 support Hawkeye display thumbnail map, screenshot function.9 support to add custom logo icon, the user can change icon.
Q:GPS method for highway survey?
Defects of conventional measurement methods:1, the specification of the length of the attached wire, the length of the wire and the length of the wire between the nodes have strict requirements, generally for high grade roads are required to meet the requirements of the first line. In this way, the length of the wire shall not be more than 10 km, or the length of the wire shall not exceed the length of the wire attached to the attachment of the wire length of 0.7 times. This requirement is generally difficult to achieve in the actual work, often appear super standardized operations.2, to collect the starting point for the general route of measurement and control is difficult to ensure the same measurement system, the measurement and measurement, often in the city of control points mixed together, the compatibility between systems, if the starting point is not compatible, is bound to affect the quality of measurement.3, serious damage to the national site, the impact of measurement operations. Due to the country's basic control points, mostly completed in 50s and 60s, after more than 30 years, some point due to the needs of economic construction is destroyed, and some people because of the lack of knowledge of human destruction. Route survey work in these areas, often in the 50 km above all can not find the wire control points. The quality of the route control survey is not guaranteed.4, ground visibility difficulties often affect the implementation of conventional measurement. The control points of the general route shall be located within 300 meters from the course. Due to visibility reasons, it is difficult to meet the conditions, even in a large range, and the dense shrub forest area, simply can not implement conventional control measure.
Q:Who can recommend me a table under the professional GPS software
Taobao to enter the online shopping, mobile phone navigator on the line, I suggest you download the Careland navigation map, or tiger map
Q:GPS handheld function to measure it?
It depends on what kind of GPS handset. Some machines have this feature.
Q:Trouble Hongkong friends come in! About Hongkong buy handheld GPS!
Specific model depends on what you are doing, almost two thousand or three thousand of the words can be. Good point is four thousand to six thousand.
Q:What is GPS Mu meter ah, with the general said that the GPS measuring instrument what is the difference?
GPS Mu meter also known as land area measuring instrument, handheld meter meter, etc.. Integrated computational methods for understanding and intelligent high precision GPS positioning system, the precise area of the handheld computer system, can realize the irregular area of real-time measurement and dynamic graphical display and intelligent data processing and storage.GPS measurement of the meter is different from the general GPS measuring instrument is based on the latitude and longitude of its area calculation function, general GPS is generally used for positioning.

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