An ultrasonic large-caliber water meter is a flow meter that uses sound waves to measure the amount of water flowing through a pipe. They are commonly used in commercial and industrial applications where accurate measurement of water usage is critical.

With the continuous development of the urbanization process, the water demand of urban residents is increasing. Traditional mechanical water meters have defects such as measurement errors and easy damage, which limit their development in large-scale applications.

Nowadays, the demand for water saving and environmental protection is increasing all over the world. However, due to the difficulty of using and maintenance of traditional water meters, the utilization rate is not high, and the awareness of environmental protection cannot be effectively guided.

In order to carry out more accurate and intelligent water supply management, ultrasonic water meters have been used in urban water supply pipelines, household water consumption master meters, water resource water intake monitoring, farmland irrigation and other places

NB-IoT is the abbreviation of narrowband Internet of Things and is an emerging technology in the field of Internet of Things. It supports cellular data connection of low power devices in WAN, also known as Low Power Wide Area Network (LPWAN).

In recent years, NB-IoT water meters have been popular in the field of water smart meter reading. Let's talk about the reasons below. The full name of NB is Narrow Band, and the full explanation of NB-IoT is "Narrow Band Internet of Things". NB-IoT water meter is a kind of smart water meter, and the