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1.2MPa 1-60L/min Hall Effect Flowmeter Control Water Flow Sensor Arduino The water flow sensor is applied for water heater, imprinter, automatic water machine, and other flow metering equipment.Portable size and light weight, easy to install With stainless steel ball inside of the impeller, wear-proof.Up and down structure stress applied for the seal ring, avoid to leak.Imported Hall element, adopt pouring sealant encapsulation to avoid to leak and age Note: When magnetic material is close with the sensor, its characteristics may vary.In order to avoid particle debris, the sensor must be installed after a filter. The flow sensor installation has to avoid strong vibration and shaking of the environment, so as not to affect the sensor's measurement accuracy. Technical Parameters: Minimum rated working voltage:DC4.5 5V-24V Maximum working current:15 mA（DC 5V） Working voltage range:DC 5～18 V Load capacity:≤10 mA（DC 5V） Operating temperature range:≤80℃ Operating humidity range:35%～90%RH (no frost) Flow Range:1-60L/min Allow compression:Water pressure 1.20Mpa below Storage Temperature:-25～+ 80℃ Storage Humidity:25%～95%RH Output pulse high level:>DC 4.5 V(Input Voltage DC 5V) Output pulse duty ratio:50±10% Output Rise Time:0.04μS Output Fall Time:0.18μS Frequency:F=5.5 * Q (L / Min) error: ± 2%