Dwyer DTFW-1S-1W is a variable-area flowmeter designed for liquids and oil. With a temperature range of -40 to 200°F (-40 to 93°C) and an accuracy of ±2% FS for liquid/oil calibration and ±5% FS for air calibration, it offers reliable and precise measurements. It is made of high-quality materials such as 316 SS, brass, and aluminum, ensuring durability. With a pressure limit of up to 3000 psig (200 bar), it can handle various applications. The 2.5" (63.5 mm) diameter dial face provides clear and easy-to-read readings.