For Arctic Cat Kitty Cat 72-00, AC/F/ZR120 00-08, Polaris XCR120 00, 120XC SP/Pro X/Dragon 01-08, Ski Doo Mini Z 98-08. The SportTech Mini-Tach is the ultimate mini sled tuning device! It accurately records up to 10,000 RPM. RPM is recorded as the engine runs, engine run time is displayed when the engine is off. This is the best way to determine proper mini sled gearing and it s also an excellent way to monitor engine use for proper, on-time maintenance. Used on all one or two cylinder, 4-stroke engines with electronic ignition. Ideal for ATV s also.