Real Time Tracking: It supports full screen display of real-time track, which can display navigation and positioning information such as real-time accuracy, latitude, altitude, etc., and real-time restore of walking track with GPS positioning data, which can be display. LED Backlight Offers CleObservation: Equipped with LED backlight display, the measurement results can be displayed on the screen directly, convenient for observation. Waterproof and Dustproof: Waterproof, dustproof, fall proof, stable performance, no need to worry about machine falling when measumountain forest and fish pond. Anti-skid Design Ensures Working Experience: VI level anti-skid design, using professional ergonomic design, not easy to fall off when working. High Precision: It adopts for U-BLOX chip, equipped with GPS positioning system, with precise measurement, small error and high precision. High Precision: It adopts for U-BLOX chip, equipped with GPS positioning system, with precise measurement, small error and high precision.