Feature:1. It adopts for UBLOX chip, equipped with GPS positioning system, with precise measurement, small error and high precision.2. VI level antiskid design, using professional ergonomic design, not easy to fall off when working.3. Waterproof, dustproof, fall proof, stable performance, no need to worry about machine falling when measuring mountain forest and fish pond.4. Equipped with LED backlight display, the measurement results can be displayed on the screen directly, convenient for observation.5. It supports full screen display of realtime track, which can display navigation and positioning information such as realtime accuracy, latitude, altitude, etc., and realtime restore of walking track path with GPS positioning data, which can be displayed directly on full screen.6. It supports manual fixedpoint measurement, length and width measurement, airborne measurement and distance measurement. The measurement method is simple and easy to operate.Specification:Condition: Brand NewItem Type: Land Area MeterMaterial: ABSModel: EM90Panel: TFT 2.4in, Resolution 240x320Area Measurement Range: 0-99999 HectaresLength Measurement Range: 0-99999999mRelative Accuracy Of Area: <= 2% (Less than 3 Hectares), <= 1% (More than 3 Hectares)Track Tolerance: 2mEnvironment: Temperature -20-60C, Humidity 5%-95%Satellite Accuracy: 1.5mMeasurement Error: 0.01mu (Approx. 6.67)Storage Record: 50Built-In Battery: 3.7V 3500mAh Lithium BatteryWeight: Approx. 370g / 13.1ozProduct Size: Approx. 14x6x3cm / 5.5x2.4x1.2in Package List:1 x Land Area Meter1 x Portable Rope1 x USB Cable1 x Adapter1 x Instruction Manual1 x Warranty CardNote:The product can only be used outdoors in open areas. GPS can be affected indoors or around buildings, resulting in no signal.