Surface mount inductive meter Is the most cost effective method of performing service. Knowing what to service and when is the key to a successful preventative maintenance program for any motor. Meter displays can be read at all limes, with engine off or on. 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. Encapsulated epoxy case is water resistant.