NF-198 GPS Land Meter Handheld Digital LCD Farmland Area Length Height Pressure Satellite Measuring Device, Automatic Manual Vehecile Mode, Outdoor Greenland Surveying Measurement Tool 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. NF-198 GPS Land Meter Handheld Digital LCD Farmland Area Length Height Pressure Satellite Measuring Device, Automatic Manual Vehecile Mode, Outdoor Greenland Surveying Measurement Tool: 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.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 the dark environment, easy to use no matter in the day or at night.Wide Application -- Applicable to measurement of area such as farmland, green land, forest, water area, beach, factories and mines. Widely in agriculture, forestry, water conservancy land management and tax as well as charging of agricultural machinery working.2 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.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 path length and distance. It can set area unit price, length unit price and so on. Built-in 2000mAh large capacity lithium battery for strong endurance, easy to charge it via equipped USB cable. Note: 2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. 1. Please read the user manual carefully before use. Specifications: Item Size: 174 * 76 * 28mm / 6.85 * 2.99 * 1.10in Color: Grey & Blue Measuring Range: 0-,.99m² Area; 0-,.99m Length Measuring Error: 1-2% Area below 0.5acre, ≤1% Area above 0.5acre; 0.5- Length Model: NF-188/NF-198 Optional Item Weight: 184g / 6.49oz Area Unit: acre/ m²/ hm²/ km² Material: ABS Package Size: 24 * 15.2 * 5.7cm / 9.45 * 5.98 * 2.24in Package Weight: 380g / 13.40oz Built-in Battery: 1 * 3.7V 2000mAh Lithium Battery Length Unit: m/ km Package List: 1 * USB Cable 1 * GPS Land Meter 1 * User Manual English 1 * Carry Bag