Alemite 3671-B electronic metered control valve is designed for accurate, high volume dispensing of a wide range of fluids. It measures in quarts, totalizes in gallons and has a flexible extension and a manual non-drip tip. The meter is easy to calibrate and no disassembly is required. It uses two standard AAA batteries replaceable with a coin screw on back of meter and has a low-battery indicator. This meter features a 1/2" NPT(f) fluid inlet (swivel) and is compatible with oil, gear oil, transmission fluid, and antifreeze concentrate (not compatible with water/antifreeze mixture). Maximum operating pressure is 1000 psi. The meter weighs 3 lb. Alemite Electronic and Mechanical Meters provide consistent, reliable performance for dispensing applications. Alemite Control Valves and Meters offer consistent, reliable and accurate dispensing of fluids. Each item offers a proven, ergonomic design for simple and comfortable use. They can be used to dispense oil, grease, automatic transmission fluid, and other petroleum based products.