54221Hi, stop your steps Description:100% brand new and high qualityFeatures:Minimum rated operating voltage: DC 5V-24V Maximum operating current: 15mA (DC 5V)Operating voltage range: DC 5 - 18V Load capacity: le; 10mA (DC 5V)Operating temperature range: le; 80cHumidity Range: 35% to 90%RH (no frost)Permissible Withstand Pressure: Water pressure below 1.75 MPaStorage Temperature: -25 - +80 Humidity Storage: 25% to 95% RH High Output Pulse Level: gt; DC 4.5V (DC 5V input voltage)Low Output Pulse Level:Accuracy (Flow-Pulse Output): 10 - 300L/min 3%Output Pulse Duty Cycle: 50 10%Output Rise Time: 0.04mu; sExit fall time: 0.18mu; sFlow pulse characteristics: horizontal test pulse frequency (Hz) = [0.2 * Q] 3% (level test) (Q is the flow rate L/min)Impact resistance: the product is well packed, free from 50cm height X, Y, Z direction to the concrete surface without abnormality, the accuracy varies within 5%. Insulation resistance: the insulation resistance between the hall sensor and the copper valve body is 100 MOmega; or more. (DC 500V)Heat resistance: placed in an environment of 80 3 C for 48 hours, returning to normal temperature for 1-2h without abnormality, and the parts have no cracks, backlash, expansion, deformation, etc., and the accuracy varies within 10%. Cold resistance: placed in the environment-20 3 C for 48 hours, returned to normal temperature for 1-2h without abnormality, and the parts have no cracks, clearance, expansion, deformation, etc., and the accuracy varies within 10%. Moisture resistance: when taken out for 72 hours in an environment of 40 2 c and 90% to 95% relative humidity, the insulation resistance is 1 MOmega; or more. Pulling force: applying 10N pulling force for 1 minute on the power cord, no backlash or breakage, and no change in performance. Durability: at normal temperature, 0.1mpa water pressure is input from the water inlet to turn on 1S, and 0.5S is off. Specification: Type: Flow Sensor Material: Plastic Applications: Suitable for Automatic Gas Water Heaters Features: Turbine Flow Sensor, Instrumentation, Measurement, Insulation, Impact Resistance, Durable, Convenient and Practical, Tools Dimension: App.9.2cm/3.62in Color: Black Type: DN40, DN50 (Optional) Quantity: 1 PcNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!