Professional Ruler Mini-Compass DC45-W 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 DC45-5W

Model: DC45-5W

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: 114*60.5*167(mm)

Color: OEM

Features of DC45-5W

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:I would like to ask the outdoor adventure GPS are required to have what functions, a good GPS all aspects of the parameters are?
Fifth elements: the terrain map is the main project of outdoor sports climbing, mountain climbing is very exhausting, we usually do a plan will be completed on schedule, a good plan should be to our destination in the manual run out before. And if you want to do this, it must be on the road difficult to have a correct anticipation. But this time, with the terrain map GPS can come in handy, the mountains and the altitude of the understanding, we need to know about these sections spend much time and energy. And the general GPS map, is unable to meet the needs. So we'd better buy a map with contour terrain data of professional grade GPS, make your own outdoor journey do in our hands.
Q:What is the difference between professional GPS handsets and mobile navigation?
Mobile phones are used for network navigation, no network will not work, professional GPS navigation satellite navigation,
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:I would like to ask, handheld GPS (set SIBAO) and land use of the RTK, this error is 20 meters?
GPS was in error with 10 meters, with the star search results, related to the environment, if the precision is high, as long as the use of handheld GPS submeter or handheld RTK
Q:What is the difference between professional navigation and professional GPS navigator
You can understand the principle of the radio transmitter receiver radio information, is not charged. GPS only in the need to track and special needs, and through the GSM network data is to receive GPRS traffic charges. Upgrade the main map of the general manufacturers do not charge. Now there are many kinds of vehicle navigation systems, different brands and various functions....Now we have to find a good brand navigation.....I hear people say it's a good way...A Thunis brand navigator is a hot productNow to the car navigator has a lot of MP3, MP4 and other entertainment features,,,,Fixed speed, movement speed and other functions....It is best to have a rear view, and, more secure.... GPS Car Navigator, simply said, is the navigator can help users to accurately locate the current position, and according to the established objective calculation of stroke by map display driving auxiliary equipment and voice prompt two ways to guide the user to the destination. It includes two important components: one is the global positioning system (Global Positioning System) referred to as GPSSuggest that you buy a professional GPS, after all, the phone's function is to call.
Q:I would like to ask the GPS handset and GPS receiver (Surveying and mapping qualification application needs) is there a difference?
GPS handheld GPS operating manual, GPS receiver is to receive satellite signals, GPS consists of two components.
Q:How to set the handheld GPS related parameters and coordinate conversion parameters throughout the country
Three parameter test DX, DY, DZ, DA, DF after the conversion parameters of the five, must be prompted to enter the handheld GPS, while the input area of the central meridian longitude. E on behalf of the east longitude, projection ratio of 1, the deviation of things to the north and south of the deviation of 0, and set the unit for M. Enter these parameters, should be taken to the field test, check whether these five parameters are correct. The method is selected, vision, GPS receiving signal strength of the feature points in the field (such as linear object intersections, independent features, etc.) is the best stone control points were measured and compared with theory and find out the coordinates of these points. If the results of the comparison exceed the nominal accuracy of the instrument, the conversion parameters or the problems that should be found should be recalculated.
Q:Handheld GPS need to put the phone card?
Hello, now the general GPS are required to put the card! Thanks
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:How to hand GPS eTrex H data to the computer
You have a data cable, the computer installed on the MapSource software, connect the computer and handheld GPS can transfer data!!!"Shaanxi skmax navigation information Limited" GARMIN proxy (GARMIN official website can be found), contact (Xiao Hou) the hope can help to you, if you do not understand what we see on the Internet, may at any time, contact us

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