GPS Land Survey Slope Mountain Area GPS Distance Meter
Technical Parameters Of GPS Distance Meter:
| 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)(just for S4) About 10meters(GPS measurement ,HDOP within 1.0)(just for S4 )  |  		
| 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. | 
















| 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 | √ |