The AFL-100 provides high-accuracy measuring from 5cm up to a distance of 100m. Designed for simple single person measuring, this unit comes complete with shortcut keys for Addition, Subtraction, Pythagoras, Area and Volume calculations. 4 selectable units: m, in, ft & ftin Accurate distance measuring from 5cm to 100m (0.16ft to 328ft) Class II laser Area/volume calculation Pythagoras function for remote measuring of height or length Addition/subtraction calculation Continuous measurement Min/max distance tracking Display with backlight shows multiple readings Audible alarm 10 measurement memory Long life soft touch buttons Built in level bubble Low Battery indication Dust-protected and splash-proof to IP-54 rating Auto laser switch off after 30 seconds Auto power off after approximately 80 seconds of no activity Battery life is between 5000 to 8000 measurements 2 year warranty Supplied with batteries and soft carry pouc