• Professional Map or Ruler Mini-Compass DC47-2 for Surveying System 1
  • Professional Map or Ruler Mini-Compass DC47-2 for Surveying System 2
  • Professional Map or Ruler Mini-Compass DC47-2 for Surveying System 3
Professional Map or Ruler Mini-Compass DC47-2 for Surveying

Professional Map or Ruler Mini-Compass DC47-2 for Surveying

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 pc
Supply Capability:
10000 pc/month

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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.


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)


 

Q:How to set the handheld GPS related parameters and coordinate conversion parameters throughout the country
Collect the 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" network, the best point is around without interference of electromagnetic wave, vision, the satellite signal is strong. 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:How do I still stay in the GPS navigation, GPS monitoring of the primary idea? FiveBusiness services, thank you!Future business services
Mainly for the ship, automobile, aircraft and other moving objects positioning navigation. For example:1 ocean navigation and incoming water diversion2 aircraft route guidance and approach landing3 vehicle autonomous navigation4 ground vehicle tracking and urban intelligent traffic management5 emergency rescue
Q:Handheld GPS and mobile phone GPS what is the difference?
Different: antenna size, function, accuracy, protection level, and has been different in the application layer (handheld GPS support GPS compass navigation and map navigation and other more professional GPS applications);
Q:I would like to ask the GPS handset and GPS receiver (Surveying and mapping qualification application needs) is there a difference? If yes, what is the difference?
This is the case, GPS handheld refers to a thin hand, while the GPS receiver refers to the RTK host, equivalent to the base station in our industry said. The general application of Surveying and mapping qualifications are required for this application, referred to as RTK (1+1) set, level, theodolite, total station, walkie talkie, technical personnel.... And so on, are essential equipment.
Q:Can you buy a good handheld GPS in China? FiveTrouble master recommended several professional handheld GPS brand, in addition to handheld GPS can speed it? Thank you!!
If it is used, there is no difference.
Q:Jia Ming etre20 handheld GPS good
Jia Ming eTrex 20 has an enhanced 2.2 inch screen, a color rendering effect of 65 thousand TFT, a readable display in the sun. Durable waterproof, but also upgraded the interface to retain the existing hardness and toughness, to withstand dust, dirt, moisture and water erosion, these are not the legendary navigator opponent.
Q:Handheld GPS each brand has what difference; different price difference in where is the positioning accuracy is different or what function is not the same?What are the differences between the measurements and the cars?
Engage in measurement and what is the difference between the car I do not know, look at the car to see if the functionSMS + Mobile Internet + computer network platform! 3 ways to check the car!
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: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.
Q:Handheld GPS which brand is good
Now GPS can also do handheld measurement accuracy, precision can usually reach decimeter level, the industry there are relatively well-known Huace, professional GPS measurement instrument, high precision of handheld GPS the good.

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