Smart Prepaid Electricity Meter with Modular Plug and Play Design Supporting Upgrades and Multi Scenario Energy Management

• Selling Points (English)

• Product Features (Point-by-Point Overview)

1. Communication & Connectivity

• Dual-mode communication: GPRS + 433MHz RF for stable data transmission in remote or network-limited areas
• Multi-channel access: Web portals, vending systems, handheld units (HHUs), and API-integrated third-party platforms (e.g., M-PESA, Alipay)
• Compatible with PLC, GPRS, or 4G LTE networks to match existing infrastructure

2. Metering Performance

• Class 1.0 measurement accuracy for precise energy billing
• Bidirectional metering support, ideal for off-grid/hybrid solar-powered systems
• Multi-tariff function (max 8 tariffs) to adapt to diverse pricing plans
• Active energy constant: 1000imp/kWh
• Working voltage range: 30%~120%Un; nominal frequency: 50-60Hz

3. Prepaid & Recharge Functions

• STS-compliant token recharge (20-digit token)
• Three recharge methods: on-site at recharge points, mobile top-up via third-party platforms, door-to-door service with mobile vending units
• Recharge options: By amount or by unit (generates detailed receipt post-recharge)
• Credit alarming and automatic switch-off for low-balance protection

4. Safety & Tamper Protection

• Tamper detection and cover opening detection with event logging
• Thickened flame-retardant shell for stability, durability, and fire safety
• Class II protection and AC insulation strength (4kV at 50Hz for 1min)
• Electromagnetic compatibility (EMC) resistance: 27MHz-500MHz (10V/m) & 100KHz-1GHz (30V/m) RF fields

5. Durability & Installation

• IP54 protection rating (dustproof, water-resistant)
• 8-year long-life battery for continuous operation
• Fixed triangular back positions + hanging hole design for easy, secure installation
• Operating temperature range: -25℃~70℃; storage temperature range: -40℃~85℃

6. Intelligent Monitoring & Control

• Real-time remote reading and electricity data analytics
• Usage trend tracking and instant anomaly alerts for proactive energy optimization
• Neutral current measurement and low-voltage operation capability
• Real-time clock and comprehensive event logging

7. User Interface & Design

• Liquid Crystal Display (LCD) + LED indicators for clear data visualization
• Keypad-type operation for convenient token input and settings
• Modular plug-and-play architecture: Component-replaceable design for cost-effective upgrades (no system performance compromise)

8. Application Scope

• Residential communities: Remote tenant usage monitoring for landlords
• Small-to-medium enterprises (SMEs): Supermarkets, offices for cost optimization via consumption tracking
• Rural electrification projects: Reliable metering in areas with limited network coverage (via RF)
• Municipal smart grids: Real-time city-wide data collection for utilities
• Industrial sub-metering: Department-level energy monitoring in factories/workshops
• Off-grid/hybrid solar systems: Seamless integration with renewable energy setups

9. Compliance & Security

• Compliant with IEC 62052-11 (electricity meter requirements) and IEC 62053-21 (accuracy class)
• Microsoft SQL Server backend database for data security
• Account permission management (modify passwords, create sub-accounts, assign roles)
• Data management functions: Import/export Excel, clear tampering/balance records, generate operational reports (receipts, monthly summaries, regional analytics)