This non-contact tachometer is designed for automotive use. It accurately measures RPM from 2.5 to 99999 with an accuracy of +/-0.02%+1digtal. It features a white backlight LCD display, automatic/manual measurement mode, data logging/viewing mode, and maximum/minimum/average value recording function. The tachometer also has a time keeping function, automatic/manual shutdown, low battery display, and 50-500mm measuring distance. Compact and portable, it is perfect for automotive and industrial applications.<br><br>Features:- Automatic and manual measurement mode.- Data logging and viewing mode.- Maximum value minimum and average value recording function.- Record interval setting function.- LCD displays white backlight.- Time keeping function.- Automatic and manual shutdown.- Low battery display.specification:Measuring range: 2.5-99999RPMResolution: 0.1RPM, at 2.5~999.9RPM; 1RPM, at 1000~99,999 RPMAccuracy: &plusmn;0.02%+1digtalMeasuring distance: 50~500mmResponse time: 0.5s (above120RPM)Operating ambient temperature: 0 to 50&deg;C (32 to 122&deg;F)Operating environment humidity: 10 to 90% RHStorage temperature: -10 to 60&deg;C (14 to 140&deg;F)Storage humidity: 10 to 75% RHSize: 145*90*35mmPackage included:1 x Handheld tachometerNotes:1. Manual measuring, please allow 1 ~ 3mm error, thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.