Description: Scale range: The scale range of the flowmeter tester is 0-25 L/Min, with a scale of 1 liter Material: It is made of rubber and plastic materials, which is durable. High accuracy: This flowmeter has high accuracy, reliable results, and is practical Suitable: Designed to check the airflows on a tig or mig welding tool. Light weight: The flowmeter tester is light in weight, easy to carry, and easy to use. Specification: Material: rubber+plastic. Color: transparent+black. Length: Approx. 13 cm/5.12 inches. Top diameter:Approx. 1 cm/0.39 inches. Note: Usage method: Install a flows meter at the nozzle of the welding tool, press the power supply test supply switch, and detect the flows. When the protection effect is not good and there are pores in the weld seam, this flowmeter can be used to measure the terminal flows of the shielding and detect whether the flows are insufficient. Note: Disable high frequency on argon welding machines, otherwise you may receive an electric shock. Package Includes: 1 Piece Flows Meter Tester.