Transparant Map Scale Compass DC45-5C

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Product details

Model: DC45-5C

Name: Professional map compass, ruler compass

Product Origin: China

Supply Ability: 10,000 pcs/month

Minimum Order: 50 pcs

MOQ for OEM package: 500pcs

Product Size: 128*60*16 (mm)

Color: OEM

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

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Q:How to use the handheld GPS whole watershed investigation
Some people think that the use of critical state to solve the most value should be cautious, we must first distinguish the relationship between the two states
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:Can a handheld navigator connect a cell phone? Thank you
Open the phone hotspot WiFi, handheld navigator connected to this wifi.
Q:I would like to ask the GPS handset and GPS receiver (Surveying and mapping qualification application needs) is there a difference?
1. GPS is a geodetic instrument, with an accuracy of CM, generally for the millimeter,,Divided into (1) pure static type, such as the South Star of the North Star, the accuracy of mm, now the basic domestic,,(2) RTK, RTK can do is use, carrier phase measurement, the precision is cm level, RTK mobile station must have the control hand book, like television and remote similar, but now there are a lot of hand book can be used as handset2. The handset is generally rough field positioning equipment, navigation for mobile phone use, the general size, precision grade m, now can to about 20cm, and can be used for RTK mobile station use (need to access the base station) can reach cm level.Surveying and mapping qualification applications require geodetic measurement equipment, that is, 1.Now domestic GPS, such as the Haida, the south, China, etc. can be measured, not expensive
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:How about the accuracy of the GPS handset?
So the selection depends on your needs the function and budget. Haida official website mall "mobile MGIS mall".
Q:Handheld GPS market which there are several models can be used to measure the land area
Professional handheld GPS only Magellan and set SIBAO
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: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: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.

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