Oval gear meter for use as in-line meters for oil and diesel. It can be wall mounted in the fluid line or at the pump outlet. Double reed switch circuit board makes possible detecting when meter counts backwards. Meters are shock proof and isolated from the fluid handled and the assembly is enclosed in a TPE moulded shroud. Meter has a led light that indicates when the solenoid valve linked with the meter is open when used in an Inventory Management System. Instruction book: 836861.