DIY Supplies: Plumbing Model Number: FS400A Note: The color of the item may vary slightly due to photography and your own computer. Stainless steel beads embedded in the impeller, always easy to wear. Flow Rate Range: 1-60L/min Inner Diameter: 0.81 inch Minimum Rated Operating Voltage: DC4.5 5V-24V Maximum Current: 15mA (DC 5V) Working Voltage Range: DC 5-18V Load Capacity: 10mA (DC 5V) Operating Temperature: 80°C, Operating Relative Humidity: 35%-90% RH Allow Compression: Pressure below 1.20 MPa Storage temperature: -25- + 80 ° C Storage humidity: 25% -95% F = 4.8 * flow units (L / min) * time (seconds). About wiring: Red connect positive; Yellow OUT Connect signal output; Black GND Connect Negative. Suitable for purifiers, heaters, credit card machines, vending machines, coffee machines, smart card equipment, boiler and other flow measuring devices! Implementation: Prohibit dramatic impact and chemical erosion. Prohibit or knock. Vertical installation, the inclination is not greater