Instant measurement of distance, area & volume with one button operation: YESSelf Calibration: YESWide measuring range: YESHigh accuracy: ±2mm (0.079inch)Automatic calculation of Area and Volume: YESIndirect measurement by Pythagorean Theorem: YESSingle/Continous measurement: YESMax/Min distance tracking (display value): YESEasy Addition/ Subtraction of measurement: YESSet up front / rear benchmark: YESSelectable meter(m), inch(in) and feet(ft): YESData store/ recall function: YESData Hold / Data clear function: 30 unitsAir Bubble Level: YES, IncludedEasy targeting with bright laser pointer: YESLarge LCD with backlight and multi-line display (4 lines): YESAuto correction and error report technology: YESBuzzer indication: YESBattery status Indication: YESIP54 protection (dust & splash proof): YESAuto / Manual power off function: YESMultifunction with intelligent calculation: YESCompact & handy design: YESCE, ROHS, FCC certificate: YESSpecification: General Certificate EMC Package Weight One Package Weight 0.18kgs / 0.39lb One Package Size 15.9cm * 8.6cm * 4.9cm / 6.26inch * 3.39inch * 1.93inch Qty per Carton 90 Carton Weight 15.00kgs / 33.07lb Carton Size 69cm * 37cm * 21cm / 27.17inch * 14.57inch * 8.27inch Loading Container 20GP: 497 cartons * 90 pcs = 44730 pcs40HQ: 1154 cartons * 90 pcs = 103860 pcs