Main features 1. Distance/ Area/Volume measurement. 2. Pythagorean proposition indirect measurement 3. Voice broadcast function 4. Single/Continuous measurement 5. Addition/ Subtraction Measurement. 6. Units and benchmark selectable. 7. Automatic horizontal and vertical 8. Rechargble lithium battery for power supply Applied range * Used for interior design and decoration technology filed. * Construction supervision & on-site detection function. * Real estate, fire control and assessment of industry planning. * Public facilities use. Technical indexes: Measurement distance NF-272L 60m/80m/100m Accuracy 2mm Test time 0.2~3S LCD screen FSTN with backlight Buttons 7 Units m/ft/in/ft+in Benchmark single/continuous measurement Distance/ Area/Volume measurement Pythagorean proposition measurement addition /subtraction measurement Voice broadcast bluetooth 4.x Data storage 99 sets Laser auto-off 30s Auto-off time 2mins Power supply 850mAh Lithium battary Working temperature 040 Storage temperature -1060 Protection level IP40 Package Include: 1 X laser distance meter