Z-Wave Long Range and its mile-long capabilities will arrive next year
Briefly

Z-Wave Long Range (or Z-Wave LR) can achieve a distance of 1.5 miles under optimal conditions, offering an advancement over traditional smart home networks.
Using a star network topology, Z-Wave LR enhances reliability in large spaces by reducing the dependence on multiple hubs and repeaters, optimizing device communication.
With Z-Wave, devices automatically fine-tune their signal strength for efficiency, potentially allowing battery life to last up to 10 years in ideal situations.
Z-Wave LR can accommodate up to 4,000 devices, demonstrating its capability to coexist with traditional Z-Wave networks while maintaining robust performance.
Read at Ars Technica
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