... for selection, measuring pipe size from DN15mm to DN6000mm Features:-High Accuracy measuring: Linearity: better than 0.5%, Repeatability: better than ... UFM can support Chinese or English display, easy to operate.-High Reliability: Adopt low voltage, multi-pulse technology to improve accuracy ... days/64 months/5 years 2. The time and corresponding flow meter of the last 64 times of power on and off ...