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STS Prepayment Energy Meters Manufacturer.

High-performance smart metering infrastructure for global utility networks and sustainable energy grids.

Product
Narrative

Technical Innovation & Quality Heritage

YTL’s STS (Standard Transfer Specification) Prepayment Energy Meters are the global gold standard for utility revenue protection. These meters utilize a highly secure encryption standard that allows users to purchase electricity in the form of a 20-digit secure token. As a specialized manufacturer, Zhejiang Yongtailong offers both integrated keypad meters and split-type systems (where the keypad is inside the home and the meter is on a pole). This system eliminates the risk of unpaid utility bills and administrative overhead by requiring payment before energy is consumed. Built with advanced anti-tamper features and a heavy-duty magnetic latching relay, our STS meters provide a transparent, credit-based energy experience. They are the ideal solution for utilities in emerging markets and private landlords who need a 100% guaranteed revenue collection model while providing users with clear low-credit warnings.

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Technical Datasheet

Technical CategorySTS Prepayment Specification
StandardSTS Compliant (IEC 62055-41, IEC 62055-51)
Token Type20-digit Secure Numerical Token
Relay TypeMagnetic Latching Relay (up to 100A / 10,000 operations)
Keypad12-key tactile feedback with audible buzzer
Protection ClassIP54 (Outdoor durable housing)

Product Application

  • Low-Income Housing Schemes
  • Privatized Utility Vending
  • Employee/Staff Quarters

Low-Income Housing Schemes

Perfect for national utilities aiming to reduce debt from residential users. The STS system allows users to buy small amounts of energy as they can afford it, avoiding large monthly bills. The 20-digit token can be sent via SMS, meaning users don't even need an internet connection or a smart card to top up their electricity credit.

Privatized Utility Vending

Ideal for gated communities or private apartment estates that manage their own electricity resale. Using our vending software, managers can generate tokens for residents. This ensures the management company recovers the full cost of electricity upfront, which is critical for maintaining the estate's infrastructure.

Employee/Staff Quarters

Companies providing on-site housing for staff can use STS meters to prevent energy waste. By providing a fixed monthly energy allowance via tokens, or allowing staff to purchase extra credit, companies can encourage responsible energy habits and significantly lower their corporate utility expenses.

Product Advantages

100% Revenue Collection

Ensures electricity is paid for before it is used, completely eliminating the risk of bad debt and the high costs of sending technicians to disconnect power for non-payment.

Military-Grade Security

The STS encryption standard is virtually impossible to bypass, ensuring that only tokens generated by your authorized vending system can add credit to the meter.

Flexible Vending Options

Tokens can be purchased via web portals, mobile apps, retail kiosks, or even scratch cards, providing maximum convenience for all types of end-users.

Frequently Asked Questions

  • Q: What is a "Split-type" STS meter?

    A: In a split system, the meter is installed high on a pole or in a locked cabinet to prevent tampering, while the Customer Interface Unit (CIU/Keypad) is inside the home for easy credit entry.

  • Q: What happens if a user loses their 20-digit token?

    A: The vending system can easily reprint or re-send the last token generated for a specific meter serial number at any time for no extra charge.

  • Q: Can I set "Emergency Credit" limits?

    A: Yes, our STS meters can be programmed to allow a small amount of emergency credit to keep the lights on after the balance hits zero until the user can reach a vending station.

  • Q: What are "Friendly Hours"?

    A: This feature prevents the meter from disconnecting power during the night, weekends, or public holidays, even if the credit runs out, ensuring user safety and comfort.

  • Q: Does the meter need an internet connection to work?

    A: No. The beauty of the STS system is that it works completely offline. The user simply types the 20-digit code into the keypad to load credit.

Welcome To A National High-tech Enterprise

Established in 2000, Zhejiang Yongtailong Electronic Co., Ltd. is located in Tongxiang. As a professional STS Prepayment Energy Meters manufacturers and STS Prepayment Energy Meters suppliers in China , YTL designs and produces electronic energy meters which are cost-efficient and ideal for the use in solutions for AMR/AMI at residential as well as industrial applications.YTL was one of the first companies in the domestic market with which had an internal R&D department as well as international sales business. Since our foundation in 2000 we have grown to a manufacturer which complies and meet to many specifications from our national and international partners. At present our export volume makes us a leading company for technology and product export to more than 60 countries throughout the world.YTL is devoted to develop and design all types of electronic energy meters, concentrators and solution applications. With a combined design of the special accessories, we have successfully developed series of competitive products of small size, multifunction, low power consumption and excellent performance. We offer a one-to-one service to our partners. With annually over 68 projects that are successfully finished and holding over 500 patents of design rights, we are also advanced in the technology and patents of current sampling.

  • 2000

    Established In

  • 500+

    Employees

  • 60+

    Export
    Countries

  • 500+

    Patent

  • 10million+

    sets per year

YTL Honor

  • MID
  • KEMA
  • DLMS
  • IEC
  • KEMA
  • SGS

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