TL900 Tachometer Counter Handheld Automotive Non-contact Digital RPM Tachometer
Resolution: 0.1RPM, at 2.5~999.9RPM; 1RPM, at 1000~99,999 RPM. Advance LCD white backlight display, easier readings even under straight sunlight or in the dark. If you do not receive our reply within 48 hours, pls.