Racine Vortex modernized its RNL insertion-style liquid vortex flowmeter line with updated electronics and an onboard display. The RNL meter is an insertion-style flowmeter designed to offer high accuracy measurements in low-viscosity liquid applications. The meter has no moving parts and is virtually maintenance-free. It fits pipe sizes of four inches and higher. The meter is DC-powered with four to 20 mA output and may also be configured for three-wire frequency pulse output. The meter is suitable for municipal water treatment, boiler feed water and condensate, cooling towers, pool and water parks, chemical processing, and ground water monitoring and irrigation systems.