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Brand Name : WangGan
Model Number : S4
Place of Origin : China
MOQ : 2
Price : $78-$85
Payment Terms : T/T, Western Union, MoneyGram
Supply Ability : 10000 sets/month
Delivery Time : 10 working days
Packaging Details : 19*15*9cm 0.4kg
Certification : ISO9001
Machine Name : Survey Grade Handheld GPS
Use way : Handheld, vehicle-mounted
Satellite signals : GPS GLONASS SBAS BeiDou
Area Measuring : Support
Application : Flat, Slope, Mountain Distance Area Measurement
Package size : 19*15*9cm
Altitude Survey : Support
Color Screen : Yes
Material : Plastic
Feature : Survey Grade Handheld GPS
GLONASS GPS Land Measurement GPS Machine , S4 Survey Grade GPS Equipment
Product Features Of Survey Grade Handheld GPS:
| Receiver chip | High sensitivity GNSS receiver chip | 
| Receiver antenna | Passive large-size planar antenna | 
| Efficient startup | 1sec for warm boot, 30sec for cold boot. | 
| Area accuracy | Measurement error within 0.03Mu(1-3Mu),2%(above 3Mu) | 
| Distance accuracy | Within 1m(HDOP less than 1.0,measuring 100m in length) | 
| Function characteristics | Longitude and latitude display,altitude display,area measurement,distance measurement,land price calculation | 
| Data statistics | Area statistics,distance statistics | 
| Area record | 200pieces | 
| Distance record | 200pieces | 
| Track display | The track will be displayed in real time in the course of measurement,it can also be viewed in statistical records. | 
| Barometric leveling | About 1meter(Barometric measurement,the absolute altitude value needs to be calibrated) About 10meters(GPS measurement ,HDOP within 1.0) | 
| HDOP setting | Custom HDOP setting | 
| Screen display | Color screen(320*240) | 
| Prompt tone | Voice broadcast | 
| Working temperature | -20℃~65℃ | 
| Storage temperature | -40℃~75℃ | 
| Equipment size | 117mm×61mm×20mm | 
| Equipment weight | 120g(No battery) | 
| Data interface | USB interface,it can be charged through this interface | 
| Standard configuration | Host 1,lithium battery 1,charger 1,data line 1,lanyard 1,instruction 1,warranty card 1,packaging box 1. | 
Product function introduction of survey grade handheld GPS:
| Model Functions | S3 | S4 | 
| Positioning accuracy | 2.5m | 2.5m | 
| Initial barometric calibration | × | √ | 
| Normal area measurement | √ | √ | 
| Mountain area measurement | × | √ | 
| Intell. Slope measurement | × | √ | 
| Fixed point measurement | √ | √ | 
| Fixed width area measurement | √ | √ | 
| Normal distance measurement | √ | √ | 
| Manual distance measurement | √ | √ | 
| Altitude display | √ | √ | 
| Altitude measurement | √ | √ | 
| Track display | √ | √ | 
| Mu setting | √ | √ | 
| Unit setting | √ | √ | 
| Time display | √ | √ | 
| Data statistics | √ | √ | 
| Historical record | √ | √ | 
| Lighting /Currency detection | √ | √ | 
| Dry battery | √ | √ | 
| lithium battery | √ | √ | 
| Data storage | 200 | 200 | 
| Voice broadcast | √ | √ | 
| Data export | × | √ | 
Mountain Mode Measurement:
at the mountain top, press [Start/Stop] button to start measuring the mountain area.Now, it is the point A; Reach to the bottom of the mountain, it is the point B. Press the [enter] button to save point B information; then walk around the bottom of the mountain, press [enter] button when you finished. press the [Start/Stop] button to pause the measurement data, [start] to go on and press the "power" button to end measurement and save data.
Round-trip Machine Load :
In this mode, you could measure the area while the farm machine’s working. First, set the value number in Parameter Round-trip setting. Then press [Start/Stop] button to start measuring while working. Press [Start/Stop] button to check when working is done. Press [Start] to go on when it’s not finished. Press the "power" button to end measurement and save data.
Intell Slope : at the starting point, press [Start/Stop] button to measure in the main surface; walk around the slope and press the [Start/Stop] button when you finished. Press the [Start/Stop] button to pause the measurement. Press the "power" button to end measurement and save data.
L/W mode : at the starting point , press the [Start/Stop] button to measure,and press the [enter] button to save information; Going from point to another point, press the [enter] button to save information; then going from this point to the finial point, press the [enter] button to save information; at last, press the [Start/Stop] button to view the measurement data; press the "power" button to end measurement and save data.
Normal distance mode: at the starting point, press [Start/Stop] button to start measuring ;Walk along the measuring line to the
end point and press the [Stop] button to stop the measurement and view the measurement data;If the measurement is not
completed,press the[Start]button again to continue the measurement. If the measurement is completed,press "power" button
to save the data.
Normal mode : at the starting point, press [Start/Stop] button to measure in the main surface; return to the starting point in a
circle around the ground, press the [Start/Stop] button to pause the measurement data. Press the "power" button to end
measurement and save data.
Shutdown:
Press the button for about 2 secs and the shutdown page appears, press the [enter] button to confirm the shutdown.
















| Functions | S4 | 
| Positioning accuracy | 2.5m | 
| Initial barometric calibration | √ | 
| Normal area measurement | √ | 
| Mountain area measurement | √ | 
| Intell. Slope measurement | √ | 
| Fixed point measurement | √ | 
| Fixed width area measurement | √ | 
| Normal distance measurement | √ | 
| Manual distance measurement | √ | 
| Altitude display | √ | 
| Altitude measurement | √ | 
| Track display | √ | 
| Mu setting | √ | 
| Unit setting | √ | 
| Time display | √ | 
| Data statistics | √ | 
| Historical record | √ | 
| Lighting /Currency detection | √ | 
| Dry battery | √ | 
| lithium battery | √ | 
| Data storage | 200 | 
| Voice broadcast | √ | 
| Data export | √ | 
|   | 
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