Map Direction Compass DC40

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Product details

Model: DC40-3A

Name: Professional map compass, ruler compass

Product Origin: China

Supply Ability: 10,000 pcs/month

Minimum Order: 30 pcs

MOQ for OEM package: 500pcs

Material: Plastic

Features

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

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:GPS handheld function to measure it?: If the construction survey is certainly not the case, the control measurement is possible

Q:How to hand GPS eTrex H data to the computer: Computer installed on the MapSource software, connect the data cable, upload waypoints and tracks can be!

Q:What is the difference between the phone's GPS and professional handheld GPS features and differences?: But because it is a built-in or external Bluetooth GPS so the accuracy is not good at least a few meters there will be a gap drift phenomenon is simple said you drive open what is displayed on the screen of your car has been in the car to go outside for a while after a while back lane unstable and power consumption a larger say to you if you are a fresh hand if there is WM or Symbian system that will buy a mobile phone Bluetooth GPS module in Internet search navigation software can be installed navigation

Q:GPS Mu meter which brand is good, handheld high-precision land area 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 charge is not into electricity what is the reason: Reason analysis:1, battery damage. 2, system failure. 3, charger reasons or bad contact.

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

Q:My cell phone: HTC Hero 200Question type: Internet softwareMy work needs to locate, record, output, and input GPS coordinates. Track record measurement, coordinate transformation. So would you have a professional security software under the table, so go out with a mobile phone or a PAD, or N equipment back to survey the tired,: Taobao to enter the online shopping, mobile phone navigator on the line, I suggest you download the Careland navigation map, or tiger map

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?: Where the speed of the car, how many miles are open at a glance at the professional GPS locator

Q:I bought the way k20s, this handheld GPS how: Choi way handheld GPS feel that you can also be in the last year, the Zhengzhou Bureau of Surveying and mapping seems to be called the wide Han instrument that home to buy, so there is no problem with it, the price is not expensive.

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