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Shenzhen Calinmeter Co,.LTD
About Us
Your Professional & Reliable Partner.
Calin, as derived from China League of Innovation, dates back to the year 2006 when our team developed the new generation of CPU card electronic prepaid kilo-watt hour meter for China State Grid. Now there are over 1,000,000 pcs this type of smart prepayment electric meters operating as key revenue protection devices for utilities and service providers in and out of China.Each member of Calin R&D team ever served in top rank Chinese meter companies and contributed to the rapid development of ...
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Year Established

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Million+
Employees

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Million+
Annual Sales
China Shenzhen Calinmeter Co,.LTD HIGH QUALITY
Trust Seal, Credit Check, RoSH and Supplier Capability Assessment. company has strictly quality control system and professional test lab.
China Shenzhen Calinmeter Co,.LTD DEVELOPMENT
Internal professional design team and advanced machinery workshop. We can cooperate to develop the products you need.
China Shenzhen Calinmeter Co,.LTD MANUFACTURING
Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.
China Shenzhen Calinmeter Co,.LTD 100% SERVICE
Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

quality Prepaid Electricity Meters & STS Prepaid Meters manufacturer

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Keypad Split Type STS Prepaid Meters: The Smart Metering Solution for Efficient Utility Revenue Management
Keypad Split Type STS Prepaid Meters: The Smart Metering Solution for Efficient Utility Revenue Management Introduction: Transforming Utility Billing with Intelligent Prepayment In today's rapidly evolving energy landscape, utility providers and property managers face mounting pressure to reduce revenue leakage, streamline collections, and empower end-users with real-time consumption visibility. Shenzhen Calinmeter Co., LTD addresses these challenges head-on with its Keypad Split Type STS Prepaid Meters — a robust, field-proven solution engineered to deliver precision metering, operational efficiency, and an exceptional user experience. Designed in compliance with the globally recognized Standard Transfer Specification (STS), these meters ensure full interoperability with existing prepayment vending systems, making them a seamless fit for utility modernization projects worldwide. Core Technology: STS Protocol with Advanced Surge Protection At the heart of the Keypad Split Type STS Prepaid Meter lies a dual-layer architecture that separates the metering unit from the user interface, enhancing both flexibility and security: Split-Type Design: The metering unit installs at the electrical entry point while the indoor keypad display provides convenient access for end-users. This separation prevents tampering and protects the core metering components. STS Compliance: Fully compliant with IEC 62055-41 and STS 501 standards, the meter accepts encrypted 20-digit recharge tokens generated by any STS-certified vending system. Lightning & Surge Protection: Engineered with robust surge withstand capability up to 16kV / 8kA, ensuring uninterrupted operation even in lightning-prone regions — a critical advantage for deployments in Africa, Southeast Asia, and South America. Compact Footprint: Measuring just 155 × 120 × 52 mm and weighing only 700 g, the meter is quick to install and unobtrusive in residential or commercial environments. Key Benefits for Utility Operators ChallengeSolution Delivered Revenue collection delays100% upfront prepayment — zero bad debt Meter tampering & bypassSplit-type architecture physically separates UI from metering Grid instability from surges16kV/8kA protection minimizes downtime and replacement costs Complex installationLightweight 700g design with standard DIN-rail mounting Vending system lock-inOpen STS standard — works with any certified vending platform End-User Experience: Simple, Transparent, Empowering The indoor keypad interface puts energy management directly in the hands of consumers. Users can: Recharge instantly by entering a 20-digit STS token via the tactile keypad — no smartphone or internet required. Monitor real-time consumption including remaining credit, current power draw, and low-credit alerts. Avoid surprise disconnections through audible and visual low-balance warnings. Budget effectively by tracking daily and monthly usage patterns. This transparency fosters responsible energy consumption while eliminating billing disputes — a win-win for both utilities and their customers. Deployment Scenarios Residential Communities: Apartments, condominiums, and housing estates where individual unit metering is required. Commercial Properties: Shopping malls, office buildings, and mixed-use developments with diverse tenant profiles. Rural Electrification Projects: Off-grid and mini-grid deployments where prepayment ensures sustainable operation. Student Housing & Hostels: Per-room metering with user-managed energy budgets. Technical Specifications at a Glance ParameterSpecification Product NameLightning Protection STS Prepaid Electricity Dispenser Surge ProtectionUp to 16kV / 8kA Dimensions155 × 120 × 52 mm Weight700 g StandardIEC 62055-41, STS 501 InterfaceTactile keypad with LED display InstallationSplit-type (outdoor metering unit + indoor keypad) Why Choose Calinmeter? Shenzhen Calinmeter Co., LTD brings years of specialized expertise in prepaid metering technology to every project. Our manufacturing facility adheres to rigorous quality control standards, and every Keypad Split Type STS Prepaid Meter undergoes comprehensive testing before shipment. We offer flexible OEM/ODM services, technical documentation in multiple languages, and dedicated after-sales support to ensure successful deployment at scale. Whether you are modernizing an existing grid, launching a new rural electrification initiative, or upgrading a commercial property portfolio, Calinmeter's Keypad Split Type STS Prepaid Meter provides the reliability, security, and ease of use your project demands. Get in Touch To request a quotation, discuss technical specifications, or schedule a product demonstration, contact our sales team today. We respond within 24 hours and can provide full data sheets, certifications, and reference cases upon request. Contact: Scott | WhatsApp: +86 13500055208 | Website: www.prepayment-meter.com

2026

06/10

Join Calin Meter at 23rd AfWASA ICE 2026 in Yaoundé!
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2026

01/23