<p>Display: 5-digit LCD, maximum reading 99,999</p> <p>Measuring range: 2.5 rpm - 99,999 rpm</p> <p>Measuring resolution:</p> <p>2.5 rpm - 999.9 rpm...0.1 rpm</p> <p>1000 rpm - 99999 rpm...1 rpm</p> <p>Measuring accuracy:</p> <p>+/-0.05% of the measured value+1 digital</p> <p>Effective measuring distance: 50-500 mm</p> <p>Sampling rate: 0.5 seconds (above 120 rpm)</p> <p>Time base: quartz crystal</p> <p>Operating temperature: 0℃-50℃</p> <p>Storage temperature: -20℃-70℃</p> <p>Power supply: two AAA batteries (seventh)</p> <p>Power consumption:</p> <p>At low laser power... about 25mA</p> <p>Under high-quality laser power... about 40mA</p> <p>Meter size: 108(L)X60(W)X32(H)mm</p> <p>Weight: 184g with packaging and battery</p> <p>Accessories: manual, battery, reflective strips (24cm x 4 strips)</p> <p>The tachometer is made of ABS material, which increases the service life of anti-corrosion and anti-oxidation.</p> <p>This digital tachometer has a wide measuring range and high resolution.</p> <p>The LED backlight display solves the problem of nighttime reading and is easy to use.</p> <p>This digital tachometer is available in 2 different colors, you can choose according to your needs.</p> <p>Wide measuring range, high resolution and easy operation.</p><p>Good quality product</p>