General description This portable digital laser tachometer offers a wide measuring range from 2.5 RPM to 99,999 RPM with high resolution options of 0.1 RPM or 1 RPM. It features a clear LCD display and is capable of measuring without contact, making it suitable for various applications including motors, wheels, lathes, electric fans, and more. Technical specifications Measuring range: 2.5 RPM - 99,999 RPM Resolution: 0.1 RPM (2.5 - 999.9 RPM), 1 RPM (1000 - 99,999 RPM) Accuracy: ± (0.05% + 1 digit) Measuring distance: 50 - 500 mm / 2 - 20 in Sampling time: 0.8 s (for speeds over 60 RPM) Power supply: 1 x 9 V 6F22 battery (not included) Power consumption: approx. 30 mA Working temperature: 0 ℃ to 50 ℃ (32 ℉ to 122 ℉) Size: 130 x 68 x 26 mm / 5.1 x 2.7 x 1.0 in Usage This tachometer is widely used in various fields such as motor measurement, wheel speed, lathe operations, electric fan performance, paper manufacturing, plastic industry, and washing machine diagnostics. Other information