WiFi HaLow is the IoT protocol nobody is talking about

Your home WiFi runs at 2.4 or 5 GHz. It works across a room. WiFi HaLow runs at 900 MHz. It works across a kilometre, through walls, through foliage, and it does it while sipping power from a battery that lasts years. It was published as IEEE 802.11ah in 2017. Most people have never heard of it.

HaLow operates in the sub-gigahertz licence exempt bands. In Australia, that means 915 to 928 MHz, the same ISM allocation that LoRaWAN uses. But unlike LoRa, HaLow is actual WiFi. It speaks TCP/IP natively. Your sensor node gets an IP address, runs MQTT, and talks to your existing network infrastructure without protocol translation or proprietary gateways.

What makes it different

Standard WiFi at 2.4 GHz has a practical indoor range of 30 to 50 metres. HaLow at 900 MHz covers a one kilometre radius from a single access point in real world conditions. The longer wavelength penetrates walls, vegetation, and building materials that stop higher frequencies dead. In the Australian context, that means a single HaLow access point on a farm homestead covers the house, the sheds, and a significant portion of the surrounding paddock.

The power consumption is where it gets interesting. HaLow includes Target Wake Time, where devices negotiate sleep and wake schedules with the access point. A soil moisture sensor can sleep for 55 minutes, wake up, transmit a reading, and go back to sleep. Battery life stretches from weeks to years depending on duty cycle. This is the same class of power efficiency as LoRa, but with IP networking and far higher data rates when the device is awake.

HaLow supports thousands of stations per access point. Each device typically provides around 100 kbps throughput, which is more than enough for sensor telemetry, alarm signals, and control commands. Data rates scale up to 8.67 Mbps on a 2 MHz channel with a single spatial stream. The standard supports channel widths from 1 to 16 MHz. At 1 MHz, you get 26 channels in the Australian 915 to 928 MHz band.

Hardware that exists today

Morse Micro, an Australian semiconductor company based in Sydney, is the leading HaLow silicon vendor. Their MM6108 chip supports 802.11ah at data rates up to 32.5 Mbps on a 4 MHz channel. Development boards and modules are shipping. Newracom in South Korea is the other major HaLow chipset supplier.

These are not lab samples. They are production hardware with FCC and ACMA certifications. The price point is comparable to current LoRaWAN gateway hardware, but the capabilities are in a different league.

How it compares to everything else

This is the table that matters. There are a lot of IoT connectivity options in Australia. Most of them involve trade offs that HaLow avoids.

Reading this table correctly

LoRa wins on range. If you need a single sensor to report a temperature reading from 15 km away once an hour, LoRa is the right choice. It is mature, cheap, and proven across thousands of Australian agricultural deployments.

NB-IoT wins on carrier convenience. If you are in a Telstra or Optus coverage area and want a turnkey solution with managed connectivity, the carrier IoT products work. You pay per device per month and someone else manages the network.

HaLow wins where standard IP matters at range. Where you need MQTT, HTTP, OTA firmware updates, TLS encryption, or video streams from a sensor that is 500 metres to 1 km from its access point. Where you want standard network tooling, DHCP, DNS, and the ability to SSH into a remote device over the same protocol your IT team already understands.

The comparison to 2.4 and 5 GHz long range WiFi is worth a closer look. Ubiquiti and MikroTik gear gives you 5 to 50 km links at 50 to 300 Mbps, but it needs directional antennas, line of sight, elevated mounting, and 1 to 10 watts of power. That hardware is backhaul. It connects your base station to your site, not your sensor to your base station. At 100 metres with an omnidirectional antenna and a battery, standard WiFi breaks down. That is where HaLow takes over.

Use cases for Australian organisations

Remote infrastructure monitoring. Water treatment plants, dam gauges, weather stations, pipeline sensors. Solar powered HaLow nodes transmitting every 15 minutes over a 500 metre to 1 km link. No cellular coverage required. No licence fees. Standard MQTT back to a central broker. An entire site's sensor network connected through a single access point.

Agriculture. Soil moisture, livestock tracking, irrigation control, weather stations. A single HaLow access point on a 20 metre tower covers a 1 to 2 km radius. Thousands of sensor nodes, IP addressable, integrated into farm management software via the standard network stack. No proprietary gateway hardware, no protocol converters, no vendor lock in.

Perimeter security. Government facilities, correctional sites, critical infrastructure. Fence mounted vibration sensors, PIR detectors, and low resolution cameras connected via HaLow. Battery backed nodes reporting events in near real time. The sub-GHz signal propagates through undergrowth and along fence lines where 2.4 GHz fails.

Smart building and city. HaLow penetrates concrete and steel where 2.4 and 5 GHz WiFi cannot reach. Parking sensors in underground garages. Structural health monitoring in bridges and tunnels. Environmental sensors in basements and plant rooms. All on a standard IP network.

Mining and resources. Open pit and underground operations where line of sight is available but cellular coverage is not. Vehicle health telemetry, gas detection, tailings dam monitoring. HaLow handles the dense node counts and moderate data rates that licensed SCADA radio was built for, at a fraction of the cost and without the licence overhead.

What is holding it back

Availability. The HaLow ecosystem is still small compared to LoRa, which has a five year head start in deployment. Fewer access point options, fewer module suppliers, fewer production deployments to reference. Morse Micro is doing the heavy lifting on silicon, but the networking gear has not reached commodity pricing.

Certification in Australia requires ACMA compliance under the LIPD Class Licence. The 915 to 928 MHz band is allocated, the power limits are clear, but the number of certified HaLow products available from Australian distributors is limited compared to the US market where the broader 902 to 928 MHz band drives demand.

The network management tooling is immature. HaLow access points do not have the depth of monitoring, firmware update, and mesh management that mature WiFi platforms offer. This will change as the installed base grows, but for now it means more hands on engineering for deployments. If your team can configure a Ubiquiti, they can configure HaLow. But the polished dashboards and automatic provisioning are not there yet.

Ecosystem inertia is real. LoRa has thousands of deployments, multiple gateway vendors, a mature network server stack, and a community that has been building since 2015. HaLow has to earn that position by shipping product and proving itself in the field. The technology is sound. The ecosystem is catching up.

Where this goes next

Morse Micro is pushing HaLow toward WiFi CERTIFIED status with the Wi-Fi Alliance, which will drive adoption from major equipment manufacturers. The 802.11ah standard is ratified and stable. The silicon is available. The Australian spectrum allocation is in place.

The convergence play is interesting. HaLow can coexist with standard WiFi in a dual radio architecture. A single device with a 2.4 GHz radio for local management and a 900 MHz radio for IoT sensor network backhaul. Edge computing gateways that aggregate hundreds of HaLow sensor nodes and forward data over 4G, satellite, or 2.4 GHz long range WiFi to a central platform. This is where HaLow stops being a niche protocol and becomes part of a layered connectivity architecture, the kind Vertex designs for sites operating beyond reliable cellular coverage.

For organisations that need IP capable IoT networks at ranges beyond standard WiFi and data rates beyond what LoRa provides, HaLow fills a specific gap with no direct alternative. The question is not whether the technology works. It does. The question is whether the supply chain matures fast enough for production deployments at scale. The answer, given Morse Micro's trajectory and the Wi-Fi Alliance's backing, is that 2027 will look very different to 2026.