ZL190PLUS Land Surveying Equipment, Handheld GPS Land Measurement Tool, Professional GNSS Receiver Surveryor Tool with 3.2 Inch Color Screen for Slope Distance Area Measurement

Large Screen:Large 3.2" sunlight-readable color display with 240 x 320 display pixels for improved readability,even in bright sunlight Professinal Accuracy: Supports 6 satellite systems (GPS, Beidou, Galileo,GLONASS, NAVIC and QZSS ) for high presion measurement, area error < 0.002 acres，distance error < 5 ft 7 Measurement Modes: Supports area measurement of irregular and regular terrain such as ranches, garden; length measurement of straight and curved lines, height and slope measurement, and can also save the coordinate points of the current position (can only save coordinates, cannot be modified) Rugged With Long Battery Life: IP65-rated for superior durability; powered by internal 4000 mAh Li-ion rechargeable battery, up to 48 hours in continuous use TIPS!!!: The device needed to be held horizontal for taking measurements. Recommend to measure Area above 0.04 acres and distance above 328ft. The larger the measurement range, the smaller the error.The altitude data displayed on the device is GPS altitude, which fluctuates with changes in the satellite signals received. This is normal Note: Please search satellite signals in an uncovered sky before using. When the signal value in the upper left corner of the device screen is below 1 m, start using to ensure the accuracy of the device. This device don't have map and cannot be used for navigation