Feature:1. High Sensitivity GNSS Receiver Chip: Equipped with an accurate grade high sensitivity GNSS receiver chip, this GNSS receiver GPS land meter provides accurate location measurements for various applications.2. Built In Barometric Altimeter: The handheld land area meter features a built in barometric altimeter for accurate elevation measurement, supporting smart slope and mountain slope measurements for enhanced accuracy in height measurement.3. Versatile Measurement Modes: The land area meter supports four measurement modes, including area measurement (ordinary area, length width area, fixed width area, fixed point area), distance measurement (ordinary distance, fixed point distance, ordinary slope distance, fixed point slope distance), aerial measurement (circling aerial, back and forth aerial), and slope measurement (ordinary slope, smart slope, mountain slope).4. High Accuracy: With high accuracy in area measurement and excellent satellite signal reception, this land survey measuring meter ensures accurate measurements in various environments, even in areas with poor mobile signal coverage.5. User Friendly Design: Featuring a clear 2.4 inch display, intuitive large buttons, real time English voice prompts, and high volume alerts, the handheld GPS land meter offers a user friendly and straightforward operating experience for users of all levels.Specification:Item Type: Land Area MeterMaterial: ABSFunction: S4Positioning Accuracy: Approx. 2.5m / 8.2ftInitial Pressure Calibration: SupportNormal Area Measurement: SupportMountain Area Measurement: SupportIntelligent Slope Measurement: SupportFixed Point Measurement: SupportFixed Width Area Measurement: SupportNormal Distance Measurement: SupportManual Distance Measurement: SupportHeight Display: SupportHeight Measurement: SupportTrajectory Display: SupportUnit Setting: SupportTime Display: SupportData Statistics: SupportHistory Records: SupportIllumination, Currency Detection: SupportDry Battery: SupportLi Ion Battery: SupportData Storage: 200Voice Broadcast: SupportData Export: SupportReceiver Chip: High Sensitivity GNSS Receiver ChipReceiver Antenna: Passive Large Size Flat AntennaQuick Start: Hot Start 1 Second, Cold Start 30 SecondsArea Accuracy: 0.005 acres (0.16-0.5 acres), 1% (over 0.5 acres) (when HDOP is less than 1.0)Distance Accuracy: 1 Meter (within 100 Meters When HDOP is Less Than 1.0)Features: Latitude and Longitude Display, Altitude Display, Area Measurement, Distance Measurement, Land Price CalculationData Statistics: Area Statistics, Distance StatisticsArea Records: 200Distance Records: 200Trajectory Display: Real Time Display of Trajectory During Measurement, Can also be viewed in statistical records.Pressure Calibration: Approximately 1 meter (for pressure measurement, absolute height value needs calibration) (only applicable to S4) Approximately 10 meters (for GPS measurement, HDOP within 1.0) (only applicable to S4)HDOP Setting: Custom HDOP SettingScreen Display: Color Screen (2.4 Inches)Sound Prompt: Voice BroadcastWorking Temperature: -20-70Storage temperature: -30-80Data Interface: USB Interface, Can be charged through this interfaceBattery: 3.7V Li Ion Battery 1800mah x 1 (Included).Package List:1 x Land Surveyor1 x Manual1 x USB Cable1 x Lanyard