Three Phase STS Prepaid Energy Meter 4G/WiFi Communication for Commercial Use

Product Specification

Products information

The STE38-G GPRS Three-Phase Prepaid Electricity Meter is a high-performance device tailored for commercial and industrial power management. It combines dual-mode GPRS/433MHz RF communication with precise three-phase four-wire system measurement, allowing for real-time access to electricity data such as voltage, current, active/reactive power, and four-quadrant energy via web portals, handheld units, or API-integrated platforms. Compliant with STS standards and equipped with international-grade metering chips, it ensures accurate measurement and reliable prepaid management. Its modular plug-and-play design not only adapts to various smart metering needs but also maintains data collection and network communication compliance. With an optional RF module enabling remote on/off control and data synchronization, and a component-replaceable architecture reducing long-term costs, the meter is perfectly suited for applications in industrial parks, commercial complexes, and large public facilities, serving as a key tool for intelligent power distribution and consumption optimization.

I. Core Selling Points

1. Accurate Metering & Compliance Assurance: Equipped with metering chips from international high-end brands, compliant with IEC62052-11, IEC62053-21, and STS standards. Features Class 1.0 metering accuracy, supports three-phase four-wire system measurement and bidirectional metering, ensuring reliable data for diverse electricity usage scenarios.
2. Flexible Communication & Remote Control: Adopts dual-mode communication (GPRS + LoRa RF wireless), with the Customer Interface Unit (CIU) offering a communication distance of 300-400 meters. Enables real-time access to electrical parameters (voltage, current, active/reactive power, four-quadrant energy) via web portals, handheld units, or API-integrated platforms. Supports remote meter reading, remote on/off control, and data synchronization for efficient operation.
3. Split Design & Easy Adaptation: Separates the prepaid keypad meter from the CIU. The CIU supports dual power supply (AC adapter + 4pcs AA LR6 1.5V dry batteries) and features a modular plug-and-play design. Adapts to smart metering needs of residential, commercial, and industrial scenarios, facilitating flexible installation and maintenance.
4. Safety, Durability & Comprehensive Protection: Constructed with thickened flame-retardant shell material, IP54 dust and water splash resistance. Designed with triangular fixed positions and hanging holes on the back for easy installation. Equipped with cover opening detection, tamper switch, and tamper record functions. Supports low-voltage operation and overvoltage protection, ensuring stable and safe use.
5. Intelligent Management & Multi-Scenario Adaptation: Supports up to 8 multi-tariff plans, with credit alarming and automatic switch-off functions. Integrates with the StronPay vending system, offering two recharge methods (by amount/unit) and API integration with third-party platforms (M-PESA, Alipay, MTN, Airtel). Suitable for residential communities, SMEs, rural areas, municipal smart grids, factories, and off-grid/hybrid solar systems, providing end-to-end electricity management solutions.

   II. Core Features

   (I) Product Configuration

6. Meter Core Parameters: Working voltage range of 70%~120%Un; active energy constant of 400imp/kWh; power consumption <2W (voltage circuit) and <1VA (current circuit); operating temperature: -25℃~70℃; storage temperature: -40℃~85℃.
7. CIU Configuration: Material: ABS; dimensions: 6.8cm (W) × 12cm (L) × 2.9cm (H); weight: 0.1KG. Display: Dot Matrix Type LCD; LED indicators for LoRa communication status; buzzer for indication and alarm. Operating environment: 0~50℃ temperature, 10%~90% humidity.
8. Interfaces & Display: The meter is equipped with a liquid crystal display, keypads, and infrared communication module; the CIU supports LoRa RF wireless communication. The meter features a transparent protective cover and LED indicators for easy data viewing and operation.

9. (II) Functional Highlights

10. Electricity Monitoring: Real-time collection of voltage, current, active/reactive power, four-quadrant energy, and neutral current data, providing insights for electricity consumption optimization.
11. Prepaid Management: Supports STS token recharge, generates recharge receipts with tokens, and enables automatic switch-off when credit is low. Tracks recharge and consumption records for precise billing and fund control.
12. Operation & Maintenance Assurance: Includes event logging, real-time clock, tamper detection, and alarm functions. Supports remote clearing of tamper records and remaining balance. Features electromagnetic compatibility protection (4kV AC insulation strength, 8kV impulse voltage, etc.) for stable operation.