Adopting technologies such as GPS, embedded single chip and high accuracy method, this instrument can measure field area and length. It's applicable to measurement of area such as farmland, green land, forest, water area, beach, factories and mines. It can quickly measure area, distance and perimeter of any shape. Features: Digital LCD Display & LED Light -- 2.8" large color screen with backlight displays measuring value, figure track and automatically calculate price after measurement, more intuitive, easy to read; with LED light to illuminate in dark environment, easy to use no matter in day or at night. Rechargeable Multifunction Land Meter -- Automatic or manual measuring method selectable. It can measure area and length of any shape (containing mountainous land and slope); it can measure length between any two points or any (length and distance). It can set area unit price, length unit price and so on. Built-in 2000mAh large capacity battery for strong endurance, easy to charge it via equipped USB cable. Data Record & Cash Detection -- It can save and record 99 historical data and figure track. Historical record can be viewed, inquired and deleted at any time. It's integrated with auxiliary function such as currency detection, which is convenient to use in daily . Wide Application -- Applicable to measurement of area such as farmland, green land, forest, water area, beach, factories and mines. Widely used in agriculture, forestry, water conservancy land management and tax as well as charging of agricultural machinery working. 2 Models Optional -- NF-188 or NF-198. Both of them feature area/ length measurement, auto/ manual testing mode, LED light and cash detection; NF-198 also features height/ barometric pressure/ satellite measurement, vehicle-carrier measurement mode, and NF-198 can measure girth together with area. Note: 1. Please read user manual carefully before use. 2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Model: NF-188/NF-198 (Optional) Color: Grey & Blue Material: ABS Measuring : 0-999,999.99m² (Area); 0-999,999.99m (Length) Measuring Error: 1-2% (Area below 0.5acre), ≤1% (Area above 0.5acre); 0.5- (Length) Area Unit: acre/ m²/ hm²/ km² Length Unit: m/ km Built-in Battery: 1 * 3.7V 2000mAh Battery Item Size: 174 * 76 * 28mm / 6.85 * 2.99 * 1.10in Item Weight: 184g / 6.49oz Package Size: 24 * 15.2 * 5.7cm / 9.45 * 5.98 * 2.24in Package Weight: 380g / 13.40oz Package List: 1 * GPS Land Meter 1 * USB Cable 1 * User Manual (English) 1 * Carry Bag Digital LCD Display & LED Light -- 2.8" large color screen with backlight displays measuring value, figure track and automatically calculate price after measurement, more intuitive, easy to read; with LED light to illuminate in dark environment, easy to use no matter in day or at night. Rechargeable Multifunction Land Meter -- Automatic or manual measuring method selectable. It can measure area and length of any shape (containing mountainous land and slope); it can measure length between any two points or any (length and distance). It can set area unit price, length unit price and so on. Built-in 2000mAh large capacity battery for strong endurance, easy to charge it via equipped USB cable. Data Record & Cash Detection -- It can save and record 99 historical data and figure track. Historical record can be viewed, inquired and deleted at any time. It's integrated with auxiliary function such as currency detection, which is convenient to use in daily life. Wide Application -- Applicable to measurement of area such as farmland, green land, forest, water area, beach, factories and mines. Widely used in agriculture, forestry, water conservancy land management and tax as well as charging of agricultural machinery working. Model: NF-188/NF-198 (Optional) Color: Grey & Blue Material: ABS Measuring : 0-999,999.99m² (Area); 0-999,999.99m (Length) Measuring Error: 1-2% (Area below 0.5acre), ≤1% (Area above 0.5acre); 0.5- (Length) Area Unit: acre/ m²/ hm²/ km² Length Unit: m/ km Built-in Battery: 1 * 3.7V 2000mAh Battery Item Size: 174 * 76 * 28mm / 6.85 * 2.99 * 1.10in Item Weight: 184g / 6.49oz Package Size: 24 * 15.2 * 5.7cm / 9.45 * 5.98 * 2.24in Package Weight: 380g / 13.40oz Package List 1 * GPS Land Meter 1 * USB Cable 1 * User Manual (English) 1 * Carry Bag