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IoT Sub-metering Solutions
Industry type:Electronics and communication
Product model number:AMR-SUB (TH/ RMT/ BMT/ CCT/ BCT)
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IoT Sub-metering solutions have significantly reduced communications costs and widely applied in smart city projects.

The sub-metering solution has been awarded by 2018 Taiwan Excellence Award and widely implemented in the ASEAN markets. The smart meters can automatically label with unique number and 4G data logger can read and distinguish each meter data according to unique number.

In addition, it can support different housing projects, from 40 households to 600 households.

Nowadays, water sub-metering solutions have been applied to 29,000 households with more than 95% market shares Also, it not only transmits water consumption data, but also consumption patterns, such leakage alarms and reverse alarms by edge-computing functionality.


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Founded in 1991, Energy Management System Company (EMS) is a dedicated smart water metering solutions provider based in Southern Taiwan Science Park, Taiwan. The smart water network solutions have been developed and installed for more than 90% of the water supply networks in Taiwan. From smart water meters (hardware) to the software (water supply monitoring platform), all have been designed and developed by EMS company in Taiwan.
Our innovative smart water management solutions have received various recognitions, such as “EU Smart Water Meter Applications” in 2011, “USA Pittsburgh INPEX Awards” in 2013, and “Taiwan Excellence” for 7 years.
From the past decade, due to climate changes, raining and typhoon seasons have occurred unexpectedly. We hope to bring the importance of the water awareness to the water utilities, industrial and commercial sectors. Implementing “TAIWAN WATER METER & SMART WATER MANAGEMENT” is our goal and promote Taiwan Water Technology on the world stage.


The founder of EMS, Mr. Ma Chuan, has attended AWWA annual meeting in 1989 and attracted by the advanced electronic water meter due to its accurate measurement and smart functions from the exhibition. At that time, water shortage is a big challenge in Taiwan. If we have Taiwan-made electronic water meter, Mr. Ma believe we can find out leakage effectively and reduce water loss.
In 1991, EMS has been created from a group of engineers. In 1993, the 1st Taiwan-made electronic water meter has been released on the market. People always said that the history of EMS company just like the historical development of the Taiwan electronic water meter.
EMS dedicated to developing smart water meter, IoT dataloggers and software systems as the total solutions for our customers from water utilities, industrial and commercial applications. Not only in Taiwan, but also from Vietnam, Thailand, Indonesia and South Africa, we have successfully installed our smart water metering solutions.

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