Neiko 20713A Professional Digital Laser Photo Non-Contact Tachometer with Accuracy 99,999 RPM Measurement
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).