Lisle Oriflo Flow 89520 is a specialty tool designed for quickly and accurately determining the flow rate of any liquid. It is a handheld tool that features a large, easy-to-read LCD display and a built-in timer for precise measurements. The tool is equipped with a stainless steel probe and a durable nylon housing for added durability and reliability. It is ideal for measuring the flow rate of gasoline, diesel, antifreeze, and other liquids.