Description:    MASTECH MS6418 80M Laser Distance Meter Distance Area Volume Measure Digital Range Finder with Bubble Level  Features:     Secondary injection rubber sleeve and thin film soft keys make the instrument more durable and comfortable. Wide measuring range up to 80m(3149in\/262ft). With a spirit level、 makes the measurement data more accurate. 4 rows of data showed at the same time、 contrast conveniently. Quick and stable measurement of distance、 area and volume. Pythagorean proposition indirect measurement. Continuous measurement. Add and Subtract Measurement. Switchable among metre(m)、 inch (in)、 feet (ft). Min\/Max value display. Data storage function. Backlight display. Automatic shutdown.   Specifications:   Distance measurement range: 80m (3149in \/ 262ft) Distance measurement precision: !#!amp!*!plusmn;1.5mm Measurement unit options: m \/ in \/ ft Laser Lever: Class II  Laser type: 635nm、 !#!amp!*!lt;1mW Auto cut off laser: 20 secs Auto power off:150 secs Operating temperature: 0 ~ 40  C (32 ~ 104  F) Store temperature: -20 ~ 60  C (-4 ~ 140  F) Storage humidity: Rh85% Power supply: 3 x 1.5V AAA batteries (NOT Included ) Dimension: approx. 118 x 54 x 28 mm (4.65 x 2.13 x 1.10 inch) Weight: approx. 180 g (6.35 oz)                 Function         MS6414         MS6416         MS6418               Max Distance Range         40m         60m         80m               Distance measurement Accuracy         !#!amp!*!plusmn;1.5mm         !#!amp!*!plusmn;1.5mm         !#!amp!*!plusmn;1.5mm               Switchable measurement unit         m \/in \/ft         m \/in \/ft         m \/in \/ft               Data display         4 rows         4 rows         4 rows               Continuous measurement         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Area measurement         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Volume measurement         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Pythagorean proposition indirect measurement         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Add and Subtract Measurement         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Min\/Max value display         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Bubble level         !#!amp!*!radic;         !#!amp!*!radic;         !#!amp!*!radic;               Data Storage         99 units         99 units         99 units               Auto Power off         150 seconds         150 seconds         150 seconds               General               Power Supply         3x1.5V AAA(not Included)               Product Size         120mm x 60mm x 32mm\/4.7!#!amp!*!rdquo; x 2.36!#!amp!*!rdquo; x 1.26!#!amp!*!rdquo;               Package Size         185mm x 76mm x 5