Acrylic Map Direction Compass DC35-1B System 1

Acrylic Map Direction Compass DC35-1B System 2

Acrylic Map Direction Compass DC35-1B

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Product details

Model: DC35-1B

Name: Professional map compass, ruler compass

Product Origin: China

Supply Ability: 10,000 pcs/month

Minimum Order: 30 pcs

MOQ for OEM package: 500pcs

Product Size: 84*55*11 (mm)

Material: Acrylic

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:I am a handheld GPS precision is low, how to use to be able to improve certain accuracy: If you can join the CORS network, the accuracy of decimeter to centimeter level.

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:The navigation module it is "selph" three generation? Another one I mainly use it to measure the land area, easy to use, the error is not big?I want to buy Magellan 500 do not know whether it is good to use: Professional handheld GPS only Magellan and set SIBAO

Q:Can you buy a good handheld GPS in China? FiveTrouble master recommended several professional handheld GPS brand, in addition to handheld GPS can speed it? Thank you!!: The main function is to use navigation as long as the navigation function can be used

Q:Handheld GPS how to achieve decimeter: Look at the handheld chip, and some can be directly achieved, some with differential signals to

Q:Handheld GPS, the measurement of arable land, fixed point and circle test, which is more accurate,: If the area is measured, are almost. However, if the measurement point is only the case, the dynamic GPS is now the general error can be guaranteed within 3cm, the total station can be guaranteed to the millimeter.

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: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?: Engage in measurement and what is the difference between the car I do not know, look at the car to see if the functionSMS + Mobile Internet + computer network platform! 3 ways to check the car!

Q:What factors affect the handheld GPS receive signal?: The United States Department of defense. A SA satellite signal to interference (the U.S. government for consideration of security of civil code of a called "selective availability (Selective SA Availability)" interference, to ensure the best protection system is effective. Because of the random error information added by SA in the navigation message, the positioning accuracy of the civil signal C/A code is reduced to about 100 meters. However, the use of differential GPS technology, the system error can be reduced to 10 to 15 metersTwo. Weather factors (including sunspots, bad weather, etc.) to reduce the intensity of the received signalThree. In buildings, vehicles, insulation paper, or metal shielding, GPS signal will be reduced or completely lost signal. In open spaces, GPS devices receive the best signal. .

Q:Handheld GPS which brand is good: Now GPS can also do handheld measurement accuracy, precision can usually reach decimeter level, the industry there are relatively well-known Huace, professional GPS measurement instrument, high precision of handheld GPS the good.

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