Multiple Measurement FunctionsNF270 digital laser measuring tool, with multiple functions, including single measurement, continuous measurement, area measurement, distance measurement, length measurement, volume measurement, Pythagorean theorem - three points; addition and subtraction; recording function. Silent setting, more accurate than standard laser distance measuring tools. Able to accurately locate the desired target, prevent errors, save time and improve productivity High Precision and StabilityLaser: Class 2, <1mW, NF270 laser distance meter adopts advanced laser precision technology and high-definition optical lens, with unique 2 bubble levels to ensure more accurate measurement, measuring range 70m/230ft, measuring accuracy up to 1/16 inch, one-button switch measurement unit, (meter/inch/foot) 99 sets of data recording & energy-saving design99 sets of data recording and call function, easy to view and calculate; portable pocket size, non-slip design; low battery indicator, laser shuts off after 30 seconds of no operation, automatically shuts down after 180 seconds to save power, can work up to 5000 times. Suitable for various occasionsNF270 laser measuring instrument with 2-inch high-definition display allows you to read easily in dark areas, and the silent setting allows you to turn on or off the measuring beep at will, suitable for use in quiet places such as libraries, rooms, apartments, classrooms, etc. The laser level is very suitable for large areas such as homes, real estate, factories, warehouse buildings, etc. Technical Specifications: Laser class: Class II, 620-670nm, <1mW Measuring range: 70 m Measuring accuracy: 1.5mm Measuring speed: < 0.5 seconds Measuring unit: feet/meters/inches/feet+inches Maximum/minimum value, plus/minus IP54 dust and splash proof Maximum storage data volume: 99 sets of storage data Laser off: 30S Auto off: 180S to save battery Battery life: Up to 5000 measurements Power supply: 3 x 1.5V (AAA) batteries (not included) Laser Measure NOYAFA NF270 Laser Distance Meter 70M (229Ft M/In/Ft) The meter should not be stored in high temperature and strong humidity environment for long time; if it is not used very often, please take out the battery and place the meter in the allocated potable bag and store in cool and dry place. Please keep the device surface cleaning. Wet soft cloth is applied to clean dust, but erosion liquid is never allowed to use for the meter maintenance. Laser output window and its focus lens can be maintained according to maintenance procedures for optical device. What is in the package? 1*Laser distance Meter 70M 1* Wrist Strap 1*Packing Box 1*Manual