In the vast expanse of the electric meter industry, Zhejiang Yongtailong Electronic Co., Ltd. undoubtedly stands out as a dazzling star. Since its establishment in 2000 in the Economic Development Zone of Tongxiang City, Zhejiang Province, it has been steadily advancing with a grand vision of "becoming a core enterprise in global power measurement, control, and services, and pursuing the common development of employees and the company," continuously writing its own glorious chapters.

Technological innovation is the core competitiveness of Yongtailong Electric Meter Company. To create high-precision and highly reliable smart electric meters, the company spares no effort in technological research and development. In terms of improving measurement accuracy, it uses high-end shunts, with errors precisely controlled within ±5ppm. Combined with laser trimming technology, it achieves a resistance accuracy of 0.01%, a temperature drift of only 0.1ppm/℃ within a wide temperature range, and a long-term stability as high as 0.02%, meeting the  international measurement standards. By optimizing the measurement chip and algorithms, and applying wavelet transform and neural network algorithms to deeply filter and correct sampled data, it effectively eliminates harmonic interference, keeping the measurement error within 0.2%. At the same time, it establishes a multi-dimensional temperature model to achieve automatic calibration across all temperature zones, ensuring high accuracy of the electric meters under different ambient temperatures.

Yongtailong Electric Meter Company also excels in product reliability. It selects industrial-grade components, with key components certified by AEC-Q100. The four-layer board design enhances anti-interference capabilities, and the redundant design of key circuits ensures that a single-point failure does not affect the overall operation. In terms of software protection, it implants a hardware watchdog to monitor the program's running status in real-time, develops an independent operating system to reduce the external attack surface, and implements encrypted data transmission to prevent data tampering. The stringent testing process further guarantees product reliability. Through HALT (Highly Accelerated Life Test), it verifies the product's performance, simulates various power grid fault scenarios for millions of cycle tests, and establishes an aging test platform to ensure the product's reliability throughout its life cycle.

Yongtailong Electric Meter Company offers an extremely rich variety of products, covering single-phase electronic energy meters, three-phase electronic energy meters, single-phase smart energy meters, three-phase smart energy meters, single-phase rail-mounted energy meters, three-phase rail-mounted energy meters, and meter accessories, with more than 400 functional specifications. Among them, the rail-mounted energy meter, as one of its star products, has a research and production history of nearly 30 years. The new generation of rail-mounted energy meter series launched in 2022 is feature-rich, with options for various electrical parameters, communication methods, and measurement methods, and also has a tariff function. It can meet the measurement needs of various application scenarios, such as building energy consumption monitoring, electric vehicle charging pile energy measurement, and new energy power generation measurement.

With its strong technical strength and high-quality products, Yongtailong Electric Meter Company has won numerous honors, such as being awarded the title of "Top 100 Most Investment-worthy Small and Medium-sized Enterprises in Zhejiang Province," "Patent Demonstration Enterprise in Zhejiang Province," and "High-tech Enterprise in Zhejiang Province." Its marketing network covers more than 40 countries and regions around the world, firmly establishing its foothold in the international market. For example, during the expansion into emerging markets, it conducts product localization design according to the power grid characteristics and energy policies of different regions, meeting the requirements for lightning protection and multilingual support in the South American market, and tailoring payment systems to local conditions in Africa, South Asia, Latin America, and other regions.

Whether in technological innovation, product quality, or market expansion, Yongtailong Electric Meter Company has demonstrated extraordinary strength. In the future, it will surely continue to shine brightly in the electric meter industry, contributing more to global energy measurement and management, and the industry to new heights.