WHAT DOES STS STAND FOR?
STS stands for Standard Transfer Specification. It is an internationally recognised open standard for prepaid utility metering, originally developed in South Africa and now used in over 50 countries worldwide.
The STS Prepaid Meters standard ensures that prepaid meters from different manufacturers are compatible and that token-based transactions are secure and tamper-resistant.
Secure Transactions
Every token is uniquely encrypted.
Tamper Resistant
Tokens cannot be reused or transferred.
Global Standard
Used in more than 50 countries.
Open & Interoperable
Works across different meters and vendors.
WHY STS COMPLIANCE MATTERS
ENHANCED SECURITY
Every token is encrypted using a unique key tied to your meter. Tokens cannot be reused or transferred.
ACCURATE BILLING
STS meters are tested to precise measurement standards, ensuring you and your tenants are billed correctly.
INTEROPERABILITY
Tenants can purchase tokens from any authorised vendor supermarkets, apps, USSD codes and more.
REGULATORY COMPLIANCE
Municipal utilities and NERSA require STS compliance for any metering installation.
HOW UTILITY SMART’S STS PREPAID METERS WORK
PROPERTY OWNERS
Guaranteed upfront payment
No debt collection
Automated revenue management
Improved cash flow and peace of mind
TENANTS
Full visibility of their own consumption
Flexibility to top up on their own schedule
Better budget control
No surprise bills at the end of the month
HOW UTILITY SMART’S STS METERS WORK
METER INSTALLATION
One of our accrepited installers fits the STS meter at the relevant supply point in your property.
METER REGISTRATION
The meter is registered on our secure platform, linking it to your property and the relevant utility.
TOKEN PURCHASE
Tenants purchase prepaid tokens online, via app, or at retail vendors.
CREDIT LOADING
The tenant enters the 20-digit token into the meter keypad. Credit is loaded instantly.
USAGE MONITORING
The meter tracks consumption in real time and deducts credit accordingly.
HOW STS Prepaid Meters TOKENS STAY SECURE
Every prepaid token contains encrypted information that is uniquely linked to a specific meter.
Tokens cannot be duplicated
Each token is encrypted using a unique meter key.
Tokens cannot be reused
Once used, the token becomes invalid.
Tokens cannot be transferred
Tokens are valid for one meter only.
Fraud is significantly reduced
Tamper-resistant technology protects your supply.
