HaLow · IEEE 802.11ah

Wi-Fi that reaches where standard Wi-Fi cannot.

HaLow operates in the sub-1GHz band (900 MHz in the US, 868 MHz in Europe). Sub-1GHz RF behaves fundamentally differently from 2.4 or 5 GHz — it bends around obstacles, penetrates dense materials, and travels far on low power. Tagnetix designs and sources the RF system for distributed device networks that standard Wi-Fi can't reach.

900 MHz
Frequency band (sub-1GHz)
1 km
Range per AP (outdoor)
8,191
Devices per AP
150 kbps–86 Mbps
Throughput (configurable)
HaLow vs. standard Wi-Fi

Why sub-1GHz wins for distributed devices.

FeatureHaLow (802.11ah)2.4 / 5 GHz Wi-Fi
FrequencySub-1GHz (900 MHz)2.4 GHz / 5 GHz
RangeUp to 1 km per AP30–100 m typical
PenetrationMetal, concrete, wallsBlocked by dense materials
Power drawVery low — battery viableHigher — mains required
Devices per APUp to 8,191~50–200 practical
Throughput150 kbps–86 MbpsUp to 9.6 Gbps (Wi-Fi 6)
RF system architecture

Every component in the chain — and who provides it.

Use this to qualify a deployment. Understand what you already have, what you need, and where ATRI Solutions adds value — individual parts, subsystems, or the complete solution.

Sign / display device
Customer hardware
Provided by
Customer
HaLow STA module
802.11ah radio
Provided by
ATRI can source
HaLow AP gateway
Site connectivity
Provided by
ATRI can source
Edge controller
Local cache / failover
Provided by
ATRI can develop
Cloud API & broker
MQTT / REST
Provided by
ATRI can develop
Dashboard platform
Fleet / device management
Provided by
Customer, or ATRI can develop
ATRI SOLUTIONS CAN PROVIDE INDIVIDUAL PARTS, MODULES, OR BUILD THE ENTIRE SOLUTION
What do you already have?

Map what you have vs. what you need. ATRI can fill any gap — individual modules, subsystems, or the complete solution.

Parts or full solution?

Strong in-house engineering — we supply modules. Need delivery — ATRI builds and deploys the entire system end-to-end.

What's your timeline?

Short timeline — sourced modules into existing hardware. Clean-slate deployment — full stack design and deployment.

Illustrative example

One AP, an entire multi-device site.

A representative deployment pattern: a distributed retail signage network across several sites, each with a mix of price displays, secondary signage, and environmental sensors — all reporting back to a central cloud platform.

Cloud layer
Central platform — content/price management, scheduling, multi-site dashboard
Site gateway layer
HaLow AP / gateway — IEEE 802.11ah · sub-1GHz · ~1 km range · up to 8,191 devices per AP
Edge device layer
All device nodes on a single HaLow AP per site
Roadside display · e-ink/LED Secondary displays · × several per site Canopy / promotional signage Indoor displays Environmental sensors Future nodes — access, camera, EV
Metal structures? No problem.

Sub-1GHz RF bends around and through the steel structures that kill standard Wi-Fi. One AP can cover an entire site from a single mounting point.

One AP. Every device.

A roadside sign, multiple secondary displays, indoor signage, and environmental sensors — all on one HaLow AP. No separate networks, no separate infrastructure budget.

Updates reach every device in seconds.

The gateway receives an update and fans it out to every node simultaneously — no manual changes, no inconsistencies across a site.

Low power — battery backup viable.

Nodes can run on small power supplies or battery. HaLow sleep modes keep every node alive between update cycles without draining power.

Scales without redesign.

A small site and a large multi-device site use the same single-AP architecture. No redesign as a deployment grows.

Local failover — stays live when cloud goes down.

The site edge controller caches the last known state. If internet connectivity drops, every node keeps operating correctly until the connection is restored.

Start a HaLow deployment

Have a distributed device network that Wi-Fi can't reach?

Tell us the site layout, the device count, and the environment. We'll scope the RF system — parts, modules, or the complete deployment.

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