Technical specification 
Receiver: 20 channels 
GPS: High sensitive chip (it can position even in forests or canyons) 
Accuracy: 3-5 meters (2D RMS), 1-3 meters (SBAS) 
Interface: USB, NMEA0183 output available 
Waterproof: IPX7 
Free drop: 1.5 M on concrete 
Positioning time: 10s (hot start), 40s (warm start), 60s ( cold start) 

Navigation function 
Accuracy: 3-5M (2D RMS) 1-3M (SBAS) 
Data record: Route point: 3000, route: 60, track: 20 
Coordinate system: 5 different kinds of coordinate systems can be viewed at the same time 
Area measurement: Track measurement 

Sensor: Three axis electronic compass and barometric altimeter

Physical characteristics 
Display: Color TFT display sunlight readable 
Pixels: 320* 240 
Keyboard: 4-way navigation 
Memory: 4G TF card 
Sensor: three axis electronic compass and barometric altimeter 
Working temperature: : -20~60(centigrade) 
Operating temperature: 0~60(centigrade) 
Storage temperature: 0-60(centigrade) 

Power characteristics 
Battery type: 2 x AA (1.5V) or Li-ion battery
Battery life: more than 8 hours (AA), more than12 hours ( Li-ion battery)  

Standard accessories 
Strap, lock catch, manual, warranty card 

Optional accessories 
Lithium battery, data transfer cable for charger (NMEA183 output)