Features: MULTIPLE MEASURE MODE — Manual Fixed Mode Auto Slop Measure Mode Vehicle Measure Mode, help you solve all kinds of terrain area measurement. This multifunction land area meter can you automatically calculation different shapes of area and also for curve line distance measurement. Slop mode, also called Pythagorean mode, which can measure a slop height and angle. Vehicle Mode can help you measure calculation reaper machine running way and distance. LARGE SCREEN & REAL TIME DISPLAY — 2.4-inch large screen with strong LED backlight for easy reading, clear at night.  Three real-time display, real-time display trajectory, real-time display area, real-time display length. MORE ACCURACY AUTO TRACK — Automatic track measurement, area and length can be displayed on same screen. High – sensitivity encapsulated antenna guarantees measuring accuracy.  area, length and trajectory can be obtained simultaneously by one measurement. LONG LASTING WORK — Built-in 5.5wh very large capacity battery, can be used for three days without worrying about .  Silicone material button, feel comfortable, wear – resistant and easy to use, never fade. 50 SETS MEMORY WIDE APPLICATION — With multiple measurement modes like distance, area and slop measurement, area meter is ideal for farming, construction and industries, buildings, real estates, factories, warehouses, etc. NOTICE: This device do not support share document with computer! Specification: Model: ZL-180 Satellite accuracy: 0.8 m Resolution: 240 * 320 Measurement error: 0.01 Length and width measurement: Yes Manual fixed point measurement: Yes Vehicle mode measurement: Yes Automatic slope measurement: Yes Real-time display graphics: Yes Three real-time display: real-time display trajectory, real-time display area, real-time display length. Item Size: 140 * 58 * 22mm / 5.51 * 2.28 * 0.87in Measurement mode: 1. Manual fixed-point measurement 2. Vehicle mode measurement 3. Measurement of length and width mode Vehicle mode measurement A. harvester, rotary machine, seeding machine and so on are directly put on car; B. Set working width (cutting width) of fuselage, and machine will automatically record running track; C. Walking length x fuselage length = operating area. Manual fixed point measurement: A. Enter manual fixed-point mode and press “start” button; B. Press “start” button once at each inflection point to add a fixed point; C. After returning to starting point, press “ok” key and machine will display measurement results. Package List: 1 * Land Area Meter 1 * Instructions 1 * Rope 1 * USB Cable   MULTIPLE MEASURE MODE — Manual Fixed Mode Auto Slop Measure Mode Vehicle Measure Mode, help you solve all kinds of terrain area measurement. This multifunction land area meter can you automatically calculation different shapes of area and also for curve line distance measurement. Slop mode, also called Pythagorean mode, which can measure a slop height and angle. Vehicle Mode can help you measure calculation the reaper machine running way and distance. LARGE SCREEN & REAL TIME DISPLAY — 2.4-inch large screen with strong LED backlight for easy reading, clear at night. Three real-time display, real-time display trajectory, real-time display area, real-time display length. MORE ACCURACY AUTO TRACK — Automatic track measurement, area and length can be displayed on the same screen. High – sensitivity encapsulated antenna guarantees the measuring accuracy. The area, length and trajectory can be obtained simultaneously by one measurement. LONG LASTING WORK — Built-in 5.5wh very large capacity lithium battery, can be used for three days without worrying about power. Silicone material button, feel comfortable, wear – resistant and easy to use, never fade. 50 SETS MEMORY WIDE APPLICATION — With multiple measurement modes like distance, area and slop measurement,the area meter is ideal for farming, construction and industries, buildings, real estates, factories, warehouses, etc.