Product Updates and Features

The Secret to Topupmeters Reliability: Advanced Mobile Connectivity

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March 6, 2026
Dominic Clegg

Topupmeters ensures a reliable connection using advanced, built-in mobile technology. Here is how our meters stay online so tenants can always top up.

Multi-Network Roaming SIMs

Every meter includes an international roaming SIM. In the UK, it automatically connects to the strongest signal from EE, Vodafone, or O2. If one network drops, the meter seamlessly switches to another.

4G LTE-M and Cat 1 Bis

Topupmeters connect over 4G mobile phone network.

  • LTE-M: A highly efficient 4G technology perfect for transmitting small data packets (like top-up credits) with excellent indoor signal penetration.
  • Cat 1 Bis: The latest cellular standard offering robust 4G speeds and low latency, ensuring longevity and resilience.

2G GPRS Fallback

Where there is no 4G coverage on LTE the meters feature an automatic 2G GPRS fallback. 

Optimized Internal Antennas

Rather than relying on fragile external aerials, Topupmeters use highly optimized internal antennas. These are specially tuned to maximize signal reception across 4G and 2G spectrums, even when installed in enclosed meter cupboards.

Why It Matters

This combination of multi-network roaming, modern 4G protocols, reliable 2G fallback, and optimized hardware makes Topupmeters incredibly resilient. It’s a true plug-and-play solution designed to process top-ups instantly, no matter the location.