SUAOKI S9 198ft Portable Laser Distance Measure, Laser Measure with 2 Bubble Levels,Pythagorean Mode and Area, Volume Calculation and Range Finder/Digital Tape Measure Ideal New Year Gifts PERFECT MEASUREMENTS: measure range 0.05-198 feet; accurate to 1/16 inch; support both imperial and metric units EASY TO READ DISPLAY: 4-line backlit display which displays data clearly; Save and recall the last 20 sets of measure data MULTIPLE MODES: single and continuous distances (min/max), area, volume, Pythagoras for height and triangular area; addition and subtraction ( Measuring Units: m/ft/in) OPTIONAL REFERENCE: change your reference point among the front, the rear of the device and a rear plastic piece for tight corners and spots ROBUST HOUSING: reinforced rubber housing; water-resistant and dust-proof with IP54 rate; suitable for outdoor using Measuring Accuracy: +/- 1.5 mm (&lt;1/16 in) Measuring Units: m/ft/in Typical Max Range: 60m (197 ft) Laser Class: Class 2; 650 nm; &lt;1 mW IP Rating: IP54 Battery Type: 2x 1.5V AAA (replaceable) Battery Life: 5,000 measurements Bubble Levels: Vertical, Horizontal Operating/Storage Temp.: 0  40 / -10  60 Laser/Device Auto Off: 30/180 sec. Product Dimensions: 115 x 52 x 32.5 mm (4.53 x 2.05 x 1.28 in) Product Weight: 123g (.27 lb) 1x S9 Series Suaoki Laser Distance Meter w/ Batteries 1x User Manual 1x Flat-blade Screwdriver 1x Carrying Case w/ Lanyard