Pack of 2: You will receive 2 pcs 1-inch digital turbine flow meters, which provide accurate flow measurement for fuel flow, water flow, and more. The flow range measured by our digital flow meter is between 2.5-26GPM / 10-100LPM, suitable for a variety of applications. Quality Material: This flowmeter is constructed from high-quality aluminum alloy, and the turbine is made of stainless steel, ensuring reliability and corrosion resistance during liquid flow measurement. Accuracy: The flow propeller of the water meter designed for garden hoses is very sensitive, with a measurement accuracy of 1%, allowing you to monitor flow size clearly. Tips: Please ensure the water fully flows through the digital flow meter for more accurate readings. 5 Types of Units: Our fuel flow meter features 5 types of measurement, which include L, GAL, and others, and you can easily switch the units on the digital display for convenient data reading. Wide Range of Applications: The digital LCD display flow meter is compatible with various liquids, such as gasoline, water, and more, making it suitable for use in fields and equipment such as farm irrigation, fish ponds, swimming pools, and water purification systems. Note: The flow meter is shipped with batteries. Material: Aluminum alloy + stainless steel Color: blue Package Contents: 2 x Turbine Flow Meter Only the above package content is included; other products are not part of this package. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The allowed measurement error is +/- 1-3cm.