Neiko 20713A Digital Tachometer, Non-Contact Laser Photo 99, 999 Rpm Accuracy

Highly accurate, scientific tool with digital laser photo technology and 6 MHz crystal oscillator. Easy to operate for taking measurement and diagnostic test results: attach small strip of standard adhesive reflective tape (included) to object, aim and measure-rpms instantly display on large LCD screen. Includes custom protective cushioned storage case, 3 aa batteries, instructions and a 24-inch of reflective tape (additional tape widely available at hardware and other stores).