Are you looking for a professional, yet digital tachometer? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? , ! Our professional digital tachometer must meet you needs. It is one of the for you. Features - Color: Grey. - Size: 17.4 x 7.3 x 3.8 cm. - Material: Plastic. - Measuring Range: 2.5 ~ 99,999 r / min. - Resolution: 0.1 r / min (2.5 ~ 999.9 r / min) 1 r / min (1000-99999). - Accuracy: ± (0.05% n + 1 d). - Sampling Time : 0.5 s (Over / min ). - Tach Detecting Distance: 50 ~ 500 mm. - Perating Temperature : 0 ~ 50 degree centigrade. - Storge temperature: 20 degree centigrade~ 70 degree centigrade. - Voltage: 9V. - Using micro-computer technology, technology and anti-jamming technology and many other advanced technology, without can accurately measure the Rotating speed - Digital display with no guessing errors. - Wide measuring range and high resolution. - The use of durable, components, including a strong, light weight ABS-plastic housing assures elegant shape and ease of use. - Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 1 x digital tachometer