Features:

• (Wide And Precise measuring range） Highly accurate non-contact digital tachometer with high speed Infrared-aim operation and instant readings from 2.5 to 99,999 RPM. Accurate to +/- 0.05.high resolution of 0.1RPM or 1RPM.
• (RPM Measurement） Provides fast and accurate RPM measurements of rotating objects without contact and revolution count of moving objects.
• (Built-in laser pointer）Laser Light Source used for greater accuracy and longer measuring distance.
• (Low Battery Indication）With auto range, low battery indication auto shut-off and other function.
• (Automatically Record）This tachometer can automatically record the max value, min value and last value, at a distance of up to 3.5 ft.

Specifications:

• Display: 5-digit 18mm(0.7"") LCD Display
• Measuring Range: 2.5RPM - 99,999RPM
• Resolution: 0.1RPM at 2.5-999.9RPM, 1RPM at 1000-99,999RPM
• Accuracy: ±(0.05%+1 digit)
• Measuring Distance: 50-500mm / 2-20in
• Time Base: 6MHz Quartz Crystal Oscillator
• Range Selection: Auto range
• Sampling Time: 0.8s(over 60RPM)
• Power Supply: 1 * 9V 6F22 Battery(NOT included)
• Power Consumption: Approx. 30mA
• Working Temperature: 0℃ ~ 50℃(32℉ ~ 122℉)
• Item Size: 130*68*26mm / 5.1*2.7*1.0in
• Package Weight: Approx. 150g / 5.3oz