STS Prepaid Water Meter SAPE
The STS prepaid water meter offers secure and reliable prepaid water metering using 20-digit token-based top-ups. Designed for both rural and urban deployments, this split-type meter allows utility companies to protect revenue, reduce tampering, and improve operational efficiency.
Applications
This SAPE split-type STS prepaid water meter is ideal for water utilities, local governments, and service providers operating in:
Rural communities and off-grid settlements
Urban neighborhoods with billing challenges
Rental properties and multi-unit housing
Community-managed water supply projects
The meter body is installed in a protected or buried location, while the indoor keypad unit (UIU) allows the user to check balance and enter recharge tokens easily from inside the home.
Key Features
Split-Type Configuration: Meter and keypad separated for enhanced security
STS Protocol Compliant: Accepts 20-digit encrypted tokens (IEC 62055)
User-Friendly Interface: Indoor keypad and display for easy access
Tamper Protection: Alerts and auto shut-off if tampering is detected
IP68-Rated Meter Body: Fully waterproof for outdoor or underground use
Prepaid Control: No water flow without sufficient credit
Built-In Valve: Automated shut-off on low balance or tamper events
Flexible Tariff Support: Time-based and step pricing available
Long Battery Life: Over 6 years of operation with low maintenance
Technical Specifications
Standard: STS (Standard Transfer Specification, IEC 62055)
Design: Split-type (Meter body + indoor keypad UIU)
Display & Input: Indoor LCD + numeric keypad (0–9)
Operating Pressure: MAP16 (up to 16 bar)
Temperature Class: T30
Protection Class: Meter – IP68; UIU – IP54
Valve Control: Integrated motorized shut-off valve
Data Logging: Secure storage of consumption and recharge history
With over a decade of field use, the STS prepaid water meter remains a trusted solution for prepaid water supply in Africa, Southeast Asia, and other emerging markets.
METROLOGICAL DATA
| Nominal diameter | DN | mm | 15 | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|---|---|---|
| Length* | L | mm | 165 | 190 | 260 | 260 | 300 | 300 |
| Nominal flow rate | Q3 | m³/h | 2.5 | 4 | 6.3 | 10 | 16 | 25 |
| R standard* | Q3/Q1 | R | 160 | 160 | 160 | 160 | 160 | 160 |
| Minimum flow rate* | Q1 | l/h | 16 | 25 | 40 | 63 | 100 | 160 |
| Transition flow rate* | Q2 | l/h | 25 | 40 | 63 | 100 | 160 | 260 |
| Maximum flow rate | Q4 | m³/h | 3.1 | 5 | 7.9 | 12.5 | 20 | 31 |
