Handheld Digital Photo Tachometer RPM Meter Backlit LCD Display Non-Contact
Resolution: 0.1RPM at 2.5~999.9RPM; 1RPM at 1000~99999RPM. Low battery indication. LCD screen with white backlight, easy to read. 1 X Reflective Tape. If item is defective after 3 months, you can still send it back to us.