Very easy to Install,Product with high sealing performance,With backlight The accuracy of the digital display meter depends on the flow sensor; The full range error of the flow sensor is relatively large, 5% or even above; The company's products are only suitable for repeated measurement use, repeated error within ±1%; Full range error: the K value calibrated at 1L/min is 10, and the K value needs to be recalibrated when measuring the water flow rate of 30L/min, otherwise the error can reach more than ±5%. Repeated error: under the same use environment, after calibration, the water pressure is required to be stable, and the horizontal pipeline before and after the sensor is more than 5 meters.