Pyle Professional Digital Non Contact Laser Tachometer W/LCD Display, 99,999 RPM Range, And Carrying Case, Black (PLT26) Professional digital Non contact laser tachometer w/ LCD display, 99, 999 rpm range, and carrying case - 5 digit LCD display - range of 2.5 - 99, 999 rpm - measures at a distance of up to 3.5 ft. Resolution: 0-1000 rpm/0.1Rpm; 1, 000-9, 999 rpm/2.5 rpm; &gt; 10, 000 rpm (0.025%+1Dgt) Automatic range selection - laser output power: &lt; 1mW class II - sampling time