Acrylic Map compass DC45-5B

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 5000 pc/month

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Product details

Model: DC45-5B

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: 112*62*17 (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

Q: Handheld GPS buried in the soil there is a signal: It depends on how deep you buried the darker the GPS signal, and must ensure that the GPS antenna upward, the above can not be covered with metal objects

Q: Handheld GPS navigation is what? Where to buy handheld GPS navigation, how to select GPS navigation?: Handheld GPS is mainly for GIS data acquisition, a lot of advanced GPS with PDA function, you can load navigation software for vehicle navigationBut the handheld GPS is mainly to do some engineering design, the main area can be measured, the location, and the boundary survey. GPS can do advanced vehicle navigation can also waypoint navigation, is a coordinate input to precise navigation to this position.Handheld GPS navigation is divided into 2 kinds, one is portable GPS navigation, one is used for surveying and mapping professional GPS handheld

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: Seeking the similarities and differences between RTK and GPS: RTK full name is GPS-RTK real-time dynamic distribution, which you know.

Q: What is the difference between industrial GPS handset and mobile navigation: 5, strong battery life, is a major feature of professional GPS, Garmin handset General of dry batteries can be used more than ten hours, while the mobile phone GPS on GPS also can use a few hours, if you open the GPS in general about 3 hours will be over.6, supporting different software. Professional GPS handheld opportunities related to the PC end of the data processing software, this software can achieve the acquisition of data processing, as well as the application of data collection. The phone GPS can only navigation, and navigation is only a small part of the GPS function.I simply say these, this is my personal summary of the difference, if you have what is not clear can exchange. Want to help you.

Q: Mobile GPS can replace professional handheld GPS: No, professional signal and positioning more accurate,Walk along the plots in a circle can measure the size and graphics trajectory, 550 yuan, USB charging, large capacity lithium battery, black and white screen to see the clear day for outdoor use.

Q: Verify the accuracy of the GPS device to buy back, the way is to use Android under the'gps state 'software, to test the accuracy of real-time single point positioning.1 with two sets of the same Android Tablet Computer (custom machine, type of bad) in the same position for receiving, find that the accuracy is the same (software, are 1-2 meters), but the position would be poor 10 meters or more. It's in the same place.The 2 one is the Android tablet computer, a mobile phone is HTC G10, also received together in the same position, find that the accuracy is not the same as (the latter 20 meters or so), but also may be about 10 meters position difference.The accuracy of this GPS device can reach 1-2 meters, while the same location in real-time single point positioning error of 10 meters, a reasonable explanation.: Oh, together with the exchange of learning, mutual verification, I said that is my experience. Software tells you that the accuracy is handled and limited, especially for some third party software. If you do not limit the scope of the conditions, the limit is too difficult to determine. If the satellite in poor condition, serious occlusion, satellite time difference, let alone ten meters, a few dozen a hundred meters are possible. Under normal circumstances, single point positioning accuracy is about ten meters, of course, sometimes all aspects of the conditions are very good, a few meters are also some. As for the accuracy of the GPS that you say htc10 and tablet computer, to this kind of navigation type GPS, from the respect of the respect that the instrument says, the accuracy should be in 10 meters to 15 meters (all the conditions are all right). Oh exchange!

Q: Fuxin coordinates with the mapping of the seven parameters are what ah there is no professional knowledge to tell my brother I need to fill the gps... Thanks.: XYZ offset, XYZ twist, 6, plus a scaling factor.Seven parameters have to be calculated, or from the local surveying and mapping departments to.

Q: Ask how to select a google satellite map into a handheld Area GPS: The ordinary mobile phone GPS, can install Orville interactive map support pre download any regional satellite map, support for offline use

Q: How the German born handheld GPS Mu meter, I want to buy?: Brian GPS handheld measuring instrument type 30A is a German born Mu launched a new professional Mu instrument, using high sensitivity GPS receiver chip, GPS super signal tracking capability, satellite positioning easily.

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