Land Meter Mini Portable Handheld Surveyor Area Measurement Tool GNSS 2.4in Color Screen Measuring Instrument S3 Item Type: Land Meter Model: S3 Position Accuracy: 2.5m Initial Pressure Calibration: No Normal Area Measurement: Yes Mountain Area Measurement: No Fixed Point Measurement: Yes Fixed Width Area Measurement: Yes Normal Distance Measurement: Yes Manual Distance Measurement: Yes Height Display: Yes Height Measurement: Yes Trajectory Display: Yes Unit Setting: Yes Time Display: Yes Data Statistics: Yes History Record: Yes Lighting, Currency Detection: Yes Dry Battery: Yes Li ion Battery: Yes Data Storage: 200 Voice Broadcast: Yes Data Export: No Receiver Chip: High sensitivity GNSS receiver chip Receiver Antenna: Passive large size planar antenna Efficient Startup: Hot start 1 second, cold start 30 seconds Area 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) Feature: Latitude and longitude display, altitude display, area measurement, distance measurement, land price calculation Data Statistics: Area statistics, distance statistics Area Records: 200 Entries Distance Records: 200 Entries Trajectory Display: Real time display of trajectory during measurement, can also be viewed in statistical records HDOP Setting: Custom HDOP Setting Screen Display: Color screen (2.4 inches) Audio Prompt: Voice broadcast Operating Temperature: -20℃~70℃ Storage Temperature: -30℃~80℃ Data Interface: USB interface, can be charged via this interface Battery: 1 x 3.7V li ion battery 1800mah