• Instrument Accessories

HTD-0022EE19

Type: EE19-SP4-9V Technical requirements and electrical safety performance: Comply with GB/T 15290-2012 General Technical Specifications for Power Transformers and Filter Chokes for Electronic Equipment. description Specification HTD-0022EE19 Version Ver.1 Date 2026/5/13…
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HTD-0009EF20

Type: EF20-006601 Technical requirements and electrical safety performance: Comply with GB/T 15290-2012 General Technical Specifications for Power Transformers and Filter Chokes for Electronic Equipment. description Specification HTD-0009EF20 Version Ver.1 Date 2026/5/13…
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HTD-0015EE16

Type: S1210 Technical requirements and electrical safety performance: Comply with GB/T 15290-2012 General Technical Specifications for Power Transformers and Filter Chokes for Electronic Equipment. description Specification HTD-0015EE16 Version Ver.1 Date 2026/5/13…
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HTD-0029EP15

Type: EP15-012601 Technical requirements and electrical safety performance: Comply with GB/T 15290-2012 General Technical Specifications for Power Transformers and Filter Chokes for Electronic Equipment. description Specification HTD-0029EP15 Version Ver.1 Date 2026/5/13…
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HTD-0034EP13

Type: EP13-012701 Technical requirements and electrical safety performance: Comply with GB/T 15290-2012 General Technical Specifications for Power Transformers and Filter Chokes for Electronic Equipment. description Specification HTD-0034EP13 Version Ver.1 Date 2026/5/13…
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HTD-0030EF20

Type: EF20-012801 Technical requirements and electrical safety performance: Comply with GB/T 15290-2012 General Technical Specifications for Power Transformers and Filter Chokes for Electronic Equipment. description Specification HTD-0030EF20 Version Ver.1 Date 2026/5/13…
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Welcome to Huahong

The company’s research and development, production and sales scale ranks among the top in China.

Chongqing Huahong Metering Co., Ltd. formerly known as Chongqing Electricity Meter Factory, the company was established in the 1960s and entered the power metering industry in the early 1980s. It has long been dedicated to the research and development, production and sales of secondary equipment for electric energy measurement. Its main products include smart meters, power transformers and meter accessories.

Our Advantages

We Always Focus on Our Customers

Established a Nationwide Sales Network

Actively expanded overseas markets, and our international business covers more than 20 countries and regions across five continents.

New business development

At the same time, we have laid out new businesses such as new energy metering, environmental protection testing, and distribution network products.

Trustworthy by Customers

With high-quality products and good services, we have earned widespread recognition and trust in the market.

Our Honors

Innovation Is the Driving Force Behind the Company’s Development

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Cases

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Partners

Our customers are our best recommenders