Good Mapor Ruler Mini-Compass DC47-2 for Surveying

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Tianjin
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Min Order Qty:
20 pc
Supply Capability:
10000 pc/month

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Product details of DC47-2

Model: DC47-2

Name: Professional map compass, ruler compass

Product Origin: China

Supply Ability: 10,000 pcs/month

Minimum Order: 20 pcs

MOQ for OEM package: 500pcs

Product Size: 125.5*60.5*10 (mm)

Color: OEM

Features of DC47-2

1, professional usage: orientation, distance measuring, measuring slope, azimuth and pitching Angle measurement, drawing, a magnifying glass

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
environment.
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.

6, Magnifier function
5,ruler compass,
6,for map measure and drawing

7,one meter neck rope,

8,Liquid filled in the compass  for reliable readings,

9, magnifier function.

 

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Q:GPS handheld function to measure it?
If the construction survey is certainly not the case, the control measurement is possible
Q:Fuxin coordinates with the mapping of the seven parameters are what ah
Handheld GPS has not been used, you can find three known control points, try to solve.
Q:What is the difference between the phone's GPS and professional handheld GPS features and differences?
With more professional and more accurate positioning but are generally used dry batteries or rechargeable batteries not built-in rechargeable battery that is because handheld GPS users are mostly investigation or walk tourists convenient in use and emphasizes there is screen are generally of low power consumption for general color screen can only convey longitude and altitude mobile phone GPS is just a subsidiary function loading car navigation map
Q:Hand held GPS coordinate conversion method
By the 84 coordinates to Beijing 54 Coordinate. A collection of application area of high grade control data in GPS receiver applied earth area (such as a county) find three (or more) uniform grade (accuracy better) or GPS "B" dot, point the best is around without interference of electromagnetic wave, vision, satellite signal. To the local surveying and mapping management department (such as: the local bureau of Surveying and mapping, surveying and Mapping Institute) Gauss plane coordinate copy these points of the Beijing 54 Coordinate System (x, y), the elevation of H and WGS-84 coordinates of the geodetic coordinates (B, L), the high H.
Q:The future of GPS? Who can tell me professional, humane business prospects,
6 people travel and adventure7 personal communication terminal (with mobile phones, PDA, electronic map integration)8 time synchronization of electric power, post and telecommunication9 accurate timing of admission10 accurate frequency of admission
Q:Recommend a handheld GPS
Younger brother, buy a smart phone, ranging from several hundred dollars to several thousand dollars, as long as the GPS module on the line, understand it?I'm not talking about it, as long as the smart phone with GPS module, you can use when GPS, can be used to drive, you can certainly use a walk. Even if there is no GPS die fast, with a cell phone signal can be positioned, but not too accurate. Hundreds of meters.In addition, you go to college, do not use smart phones, students are not afraid of jokes? Buy a Android system on the machine line. Cheap on a few hundred dollars.You say you take a hand-held machine, and then take a cell phone to go out, trouble is not trouble?
Q:Mountaineering to buy a professional GPS or Mountaineering Watch
There is no need to buy too many devices. Now the phone is an essential tool, the phone has GPS,
Q:What factors affect the handheld GPS receive signal?
The United States Department of defense. A SA satellite signal to interference (the U.S. government for consideration of security of civil code of a called "selective availability (Selective SA Availability)" interference, to ensure the best protection system is effective. Because of the random error information added by SA in the navigation message, the positioning accuracy of the civil signal C/A code is reduced to about 100 meters. However, the use of differential GPS technology, the system error can be reduced to 10 to 15 metersTwo. Weather factors (including sunspots, bad weather, etc.) to reduce the intensity of the received signalThree. In buildings, vehicles, insulation paper, or metal shielding, GPS signal will be reduced or completely lost signal. In open spaces, GPS devices receive the best signal. .
Q:Handheld GPS navigation is what? Where to buy handheld GPS navigation, how to select GPS navigation?
Handheld GPS navigator, also known as portable navigator, but also divided into 2 kinds, one is the ordinary PND navigator, you can go to Zhongguancun, the major appliance stores to buy, and the other is the mobile navigation, GPS smart phone is installed in the GPS navigation software can be,The navigator is composed of 2 parts: hardware and navigation software. The navigator on the market is about RMB 600. The brand of Kelid navigation software is usedGPS is a portable handheld navigation navigation products, the market is now very much, most car navigation can be used, the Gps signal is still free to receive satellite signals in the United States, you only need to charge it, map to the sellers in general can be upgraded.
Q:I am a handheld GPS precision is low, how to use to be able to improve certain accuracy
If the carrier phase measurement function is not available, you have the maximum accuracy of GPS accuracy of 1-10This can only improve the observation environment using SBAS and other ways to improve the accuracy

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