DescriptionAre you looking for a professional, yet affordable tachometer? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional tachometer must meet you needs. It is one of the best choices for you.Features- Color: Blue. - Material: Plastic. - Size: 19 x 7 x 3.5 cm/7.5 x 2.8 x 1.4 inch. - Test range: 2.5-99999RPM (rev/min); 0.5-19999RPM (rev/min); 0.05-1999.9m/min (m/min). - Resolution: photoelectric mode: 0.1RPM (rev/min) (0.5-999.9RPM) 1RPM (rev/min) (above 1000RPM); 0.1RPM (rev/min) (0.5-999.9RPM) 1RPM (rev/min) (Above 1000RPM); 0.01m/min (m/min) (0.05-99.99m/min) 0.1m/min (m/min) (100m/min or more); line length: 0.02m (m) (0.05-99999m ) Accuracy:(0.05% reading + 1 word). - Detection distance: 50-500 mm. - Time base: 6MHz crystal. - Power consumption: about 30mA (in operation). - Operating temperature: 0-50C (32-122F). - Wide measuring range and high resolution. The use of durable. - Digital display gives exact RPM with on guessing or errors. It is a great tool to measure. - In wood and metal working it can be used to accurately measure the of a lathe. - The housing has been carefully shaped to fit comfortably in either hand. - The last value/min . value will be automatically stored in memory and can be displayed by turn anytime. - Wide measurement range, high resolution. Large screen display, clear reading.