Prepayment Split Keypad Energy Smart Meter 230V Meter With User Interface Unit
The STS Prepaid Single Phase Meter with Customer Interface Unit (CIU) delivers secure, reliable, and user-friendly energy management for residential and small commercial applications. Supporting STS standard vending, RF communication, and split architecture, this system ensures safe indoor access for consumers while protecting the meter from tampering and harsh outdoor environments.
Key Features & Specifications
STS Standard Prepayment
- Secure 20-digit numeric token input system
- Eliminates billing delays and revenue losses
- Compatible with all major STS vending systems
Split Meter Design (Meter + CIU)
- CIU installed inside the consumer's home for easy access
- Energy meter installed outside for anti-tamper protection
- Users can check balance and enter tokens without accessing outdoor meter
- Enhanced safety, convenience, and regulatory compliance
RF Communication Technology
- Long-range and stable RF communication between CIU and meter
- No wiring required between meter and CIU
- Interference-resistant, suitable for urban and rural deployment
- Easy installation with reduced maintenance costs
Technical Specifications
| Vending Mode |
STS Token (20-digit) |
| Communication |
RF (CIU ↔ Meter), optional PLC/RS485 for backend |
| CIU Display |
LCD with balance, consumption, alarm indicators |
| CIU Input |
Keypad for token entry and system interaction |
Advanced Anti-Tamper Functions
- Neutral missing detection
- Reverse energy detection
- Magnetic field detection
- Cover opening / terminal cover tamper monitoring
- Meter bypass detection and reporting
User Experience Features
- Real-time balance and consumption display via CIU
- Low credit warning with power-off protection
- Comprehensive event logs for tamper, token history, and credit records
- Fast token acceptance and verification process
Installation & Deployment
Suitable for pole-mount or wall-mount installations. Ideal for utilities, property developers, and rural electrification projects. The RF-based split design significantly reduces deployment costs while maintaining system reliability.
System Benefits
Secure Revenue Protection
Through STS standard implementation
Convenient Operation
Indoor interaction via CIU
Reliable Communication
RF technology suitable for all environments
Easy Installation
No wiring required between CIU and meter
Robust Security
Comprehensive tamper detection ensures utility revenue safety
