The water flow sensor is easy to clean, easy to install, wear-, and has a long service life.Medium used:water, less than equal 60voltage:DC5VRated voltage/current:DC5V, less than equal 10mAInsulation resistance: 100 MRProduct Name:Water Flow SensorElectrical strength:AC500V, 50HZOutput voltage:When the rated voltage is less than DC5V, the high level is above 0.2V and the low level is below 0.2VWhen the rated voltage is or equal to DC5V: the high level is above 0.5V, and the low level is below 0.5VPulse duty cycle:50%Pressure resistance performance:less than equal 1.2MpaFlow range:0.25-2.5L/min1. To prevent particles and debris from entering the sensor, a filter screen must be installed at the inlet of the sensor;2. The water flow sensor should be installed inside the equipment or indoors. Please do not expose the sensor to harsh environments such as outdoor, humid, and high temperatures for a long time3. Please do not use the water flow sensor under vibration or shaking, otherwise it will affect the measurement accuracy of the water flow sensor4. When magnetic materials or materials that generate magnetic force on water flow sensors approach them, their characteristics may change.5. Do not disassemble the water flow sensor without authorization to prevent damage. Due to different product batches, the appearance , which does not affect the use.Colour:As ShownMaterial:PlasticPackage Contents:5 * Water flow sensorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.