Professional Map Mini-Compass DC45-5D for Serveying

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

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Product details of DC45-5D

Model: DC45-5D

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: 140*61*17 (mm)

Color: OEM

Features of DC45-5D

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: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:How to upgrade handheld navigator
Some 4S shop can;Read the instructions, there are generally USB mouth, then you can upgrade the computer practice;There is a memory card, then you can remove the plug on the computer upgrade;Or get the computer city to see it.
Q:Handheld GPS need to put the phone card?
Travel GPS professional solutions:Put card. Will be equipped with a card at the time of purchase.
Q:Is it accurate to measure highway mileage with GPS handheld
As long as you can receive more than four satellites, and the signal is good, the accuracy should be high.
Q:Handheld GPS locator measuring accuracy is about how many meters?
The handheld machine precision is generally divided into: centimeter decimeter level, 1 meters, 2 meters, 3 meters, 5 meters;
Q:Handheld GPS purchaseHandheld GPS navigator!
The more high-end is good, clever and wheat zalun, many outdoor enthusiasts are used to this, hiking, cycling and other applications are relatively wide, is an American brand, Mazelen returned to the U.S. Army GPS, and as Ma Ying-Jeou ring when riding on the handlebar also puts a high out of this two 60CSX. the brand in the nature, the price is more expensive, in more than 2000, but the best is to the store to buy.
Q:What factors affect the handheld GPS receive signal?
Active ionosphere, large canopy, high voltage wire, high building.... Have influence.
Q:The future of GPS? Who can tell me professional, humane business prospects,
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:GPS handheld function to measure it?
If the construction survey is certainly not the case, the control measurement is possible
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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