Surface mounted inductive meter provides what today's power-sports user need and expect from hour tach meters. Hour/Tach meters have become the most cost effective method of performing service. Knowing what to service and when, is the key to a successful preventative maintenance program for your motorcycle, ATV, PWC, boat and generator. Meter displays can be read at all times. The hour/tach meter shows total hours accumulated and RPM's when the engine is running. When the engine is off the meter shows total hours accumulated. There is no clicking like mechanical meters. Installation is easy with simple patented one wire hook-up. Solid state electronics, modern LCD, superb environmental durability and enhanced functionality offer today's leading OEM's the best of all possibilities without sacrifice to performance, operation, or budget. Suitable for all single and twin, two or four cycle gasoline engines operation within specified tachometer firing pattern. Operates with new generation 2 or 4 stroke "pen stick" coils. No Power Required - Includes 10 year battery sealed inside. 100% epoxy encapsulated casing resists water. IP 68 Rating. CE Certified. One year warranty.