China ultrasonic water meter makers target remote-reading utility projects

Chinese manufacturers are supplying ultrasonic and smart water meters as utilities expand remote-reading networks. Shengda Water Meter and four other companies stand out for products that combine measurement accuracy, communication options and long service life.

Why it matters: - Utilities are replacing manually read mechanical meters with remote-reading systems, and ultrasonic meters fit that shift. - Ultrasonic designs have no moving parts, which reduces wear and supports low-flow sensitivity. - Meter buyers are prioritizing IP68 protection, long battery life and communication support for AMR, AMI and smart-city platforms. - Chinese suppliers are positioned to provide both the meter hardware and the connectivity layers utilities need.

What happened: - The article identifies five China-based manufacturers active in ultrasonic and smart water meters for utility projects. - The companies named are Huizhong Instrumentation, Sanchuan Wisdom Technology, Ningbo Water Meter, Suntront Technology and Shengda Water Meter Co., Ltd. (SDWM). - SDWM is based in Kaifeng, Henan, and was founded in 1995. - SDWM operates a 66,000 m² production facility and exports to the United States, South America, Africa and Southeast Asia.

The details: - Huizhong Instrumentation is based in Tangshan, Hebei, and focuses on ultrasonic flow meters, heat meters and water meters. - Sanchuan Wisdom Technology is based in Yingtan, Jiangxi, and supplies mechanical meters, smart meters and utility water metering systems. - Ningbo Water Meter is based in Ningbo, Zhejiang, has a long manufacturing history and sells domestic and industrial meters, including remote-reading smart products. - Suntront Technology is based in Zhengzhou, Henan, and focuses on intelligent metering devices and utility management systems. - SDWM says more than 65% of its business comes from repeat customers. - SDWM commissioned a new factory in 2020 with annual production capacity of 10 million units. - SDWM employs more than 200 people. - SDWM holds ISO9001, ISO14001 and ISO45001 certifications. - SDWM product certifications include CE, MID and ISO4064. - SDWM offers OEM and ODM services. - SDWM’s product lineup includes smart water meters, ultrasonic water meters, LoRaWAN water meters, prepaid water meters, electromagnetic flow meters and magnetic flow meters. - SDWM’s LXSY ultrasonic water meter covers DN15-DN600 and supports R250, R400 and R500 flow ratios. - The LXSY supports LoRaWAN, NB-IoT, 4G Cat.1 and RS485. - The LXSY has IP68 protection and a lithium battery rated for up to 10 years of service. - SDWM’s LXSC LoRaWAN ultrasonic meter also covers DN15-DN600 and supports EU868, US915, AS923 and AU915 frequency bands. - LXSC options include remote valve shut-off, leakage alarms, tamper alarms, low-battery alarms and historical data storage. - SDWM’s LXSG R200 mechanical water meter covers DN15-DN25 and complies with ISO 4064 and OIML R49. - SDWM offers pulse output, M-Bus, RS485, LoRaWAN and NB-IoT across its meter families. - In municipal projects, SDWM meters are used for consumption measurement, remote meter reading, billing management, leakage detection and water balance analysis. - SDWM also offers the LXS-S STS prepaid water meter and the LXSK smart card prepaid water meter for payment-before-use supply. - SDWM’s NB-IoT smart water meter supports remote reading, remote valve control, low-battery alarms and abnormal metering alarms. - SDWM says its LoRaWAN water meter LXSY is designed for residential, commercial and agricultural use and can integrate with AMR and AMI systems. - For industrial and bulk metering, the company pairs communication modules with Woltman water meters and electromagnetic flow meters for large-diameter pipes.

Between the lines: - The list is not a performance ranking; it reflects visible activity in smart and ultrasonic metering and international supply. - Buyers are being pushed to check standards, flow ratio, communication protocol and power life before placing orders. - Higher R values, such as R250 or R400, indicate better low-flow sensitivity. - LoRaWAN is suited to wireless remote reading, NB-IoT fits cellular networks, and M-Bus and RS485 support wired building systems. - SDWM is trying to cover both mechanical and ultrasonic segments, which can appeal to international buyers looking for one supplier across multiple meter types.

What's next: - Ultrasonic water metering is expected to keep growing as utilities expand remote data collection and retire manual meter reading. - Chinese manufacturers may gain more share because they can integrate meter bodies, communication modules and smart software in one supply chain. - Project planners will keep focusing on certification, network compatibility and installation conditions before selecting suppliers.

The bottom line: - Chinese ultrasonic water meter makers are moving from hardware suppliers to full smart-meter solution providers, and utility buyers are judging them on compliance, connectivity and long-term reliability.