Noyafa NF-188 GPS 2.8 ''LCD Test Devices Land Measuring Instrument US

Description

Function Features:
1.2.8 inch 320 x 240 large color screen that makes more clear and visually
2.Any shap of earth square and girth can be measured ( upland and slope inculded ) .
3. Between any two points can be tested ( Length or Distance ).
4. Test data , Graphics trajectory , total amount of calculation can showed on the screen.
5. Measuring method : Manual and automatic.
6. Can keep and records 99 historical data. And also can scan ,find and delete them.
7. Set up unit price according to the relative mesuring units.
8. Extra money detect , lighting and backligh functions.
9. Configure 2 pcs of 3.7V/ 2000mAh batteries , can work 8-10 hours for each battery that can save the cost for the users..
Technical indexes:
Square detect range: 0-999999.9 M2
Measuring error:3-5%
Units: mu/ square / hectare / kilometres
Length detect range:0-999999.9 M
Measuring error:1-3 M
Power supply:3.7v / 2000mAh battery
Continuous working time :8-10 hours
Dimensions (LxWxD): 174 x 76 x 28mm
Weight:149g
Attention:
1. Don't close to tall obstructions ( building , tree something like that ) because this device fit to ourdoor empty test.
2.After searched 6 satellite to start work.
3.Don't measure less than 0.3 mu land.
4. Don't cross or overlap the trajectory when you measuring.
5. Before you measuring , please check the Latitude and longitude coordinates is steady