Executive standard: ISO4064-2014GBT778-2018Measured fluid: Watersewageseawater(Measuring other liquids requires customization)Ensure that water fills the pipeFluid temperature: 0.1-30Working environment: Temperature-30-45Humidity100%( RH )Working pressure: 1.6MPaPressure loss: No pressure lossSensitivity level of upstream flow field: U5Sensitivity level of downstream flow field: D3Climate and mechanical safety leve: Level CElectromagnetic compatibility level: Level E2Communication interface: RS485/USART/Infrared interface,optional M-BUS, NB-IOT wireless transmissionOutput signal: Optional OCTPower supply: Built-in lithium battery/External DC 8-24V power supplyProtection level: IP68Local display: Two lines show 9-bit cumulative flow,6-bit instantaneous flow,various status prompts and unitsData storage: Lithium battery power is required for storing parametersIt can automatically record the cumulative flow of 31 months and the daily flow of the 32nd month.Flow measurement period: Application status:once/second;Verification status:4times/secondPower consumption: Standard status:<30uA,The longest working time of a battery can be more than 15 years.Material: Measuring tube:nylon+GF;Sensor:PEEK;Housing:ABSFeatures:High measurement accuracy.IP68 waterproof grade.Low power consumption, battery power supply.UV protection, sturdy shell, long lifespan.Independent probe, stable and reliable operation.Only 2 inch (50.8mm) thickness, save installation space.Support monitoring by mobile phone, Ipad, computer.NB-lot module wireless networkCommunication: RS485/USART/InfraredOptional: M-BUS, NB-lot, OCTPackage Included:1 x Ultrasonic Water Meter