With LCD digital display design, this tachometer is very easy for you to read and use. Characterized by wide measuring range and high resolution, this tachometer has strong practicability. It is constructed of ABS material. The length of this product is 13cm, the width is 6.5cm and the height is 2.5cm. It is widely used in wood and metal working, and it can be used to accurately measure the speed of a lathe. Item Name: Tachometer Material: ABS Model: DT2234C+ Range Selection: Automatic Switching Test Range: 2.5RPM - 99,999RPM Resolution: 0.1RPM (2.5-999.9RPM), 1RPM (Above 1000RPM) Effective Measuring Distance: 50mm-500mm Measurement Accuracy: Plus or Minus (0.05 Percent +1) Sampling Time: 0.8 Seconds (Above 60 RPM) Power Consumption: About 35mA Power Supply: 1 x 6F22 9V Battery (Not Included) Features: LCD Display, Accurate, Memory Function Size Details: 13cm x 6.5cm x 2.5cm/5.12" x 2.56" x 0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Tachometer