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Geolocalisation technologies
When GPS goes quiet, Wi-Fi keeps you covered. Inside a warehouse, under a dock roof, or in a packed industrial yard, your tracker finds its way using the Wi-Fi that’s already there, for a fraction of the battery.
Wi-Fi geolocation works out where something is by listening for the Wi-Fi access points around it and matching them against a database of known locations. The tracker never connects to those networks. It just listens. No passwords, no logins, no data plan.
This matters for two reasons. First, it works indoors and anywhere GPS struggles: warehouses, covered docks, production halls and busy city areas. Second, a Wi-Fi scan uses far less energy than a GPS fix. For battery-powered trackers that need to last years, not days, that difference is everything.
In places with plenty of Wi-Fi around, it gets you to roughly ten meters. That’s less exact than GPS out in the open, but GPS doesn’t work under a roof at all. The smart move is to use both, and let the tracker switch on its own.
How Wi-Fi geolocation works: full technical explanation →
GPS works outdoors. Wi-Fi fills in the rest. Together they give you continuous visibility across every environment your assets pass through.
Warehouses, covered docks, production halls. Wi-Fi scanning keeps location data flowing where GPS goes silent.
A Wi-Fi scan uses far less power than a GPS fix. Indoors, the tracker leans on Wi-Fi and stretches battery life from months to years.
One device, one timeline. GPS and Wi-Fi hand off automatically as assets cross borders and move between indoor and outdoor environments.
Wi-Fi geolocation is passive. The device scans access points without connecting to any network. No credentials, no IT tickets, no configuration.
A Sensolus smart tracker carries GPS, Wi-Fi, and Bluetooth in one device. It works out where it is and picks whichever one gives the best fix for the least battery. Nothing to switch, nothing to set up.
On the road, at a port, or in open sky, the tracker uses GPS satellites to fix its position. Accurate to within meters, reported over LTE-M or NB-IoT.
Under a roof, in a warehouse, or between city buildings, the tracker listens for nearby access points to work out where it is. No network connection needed, and it uses far less power than GPS.
Every position fix, whether from GPS, Wi-Fi, or BLE, appears on the same dashboard. One continuous timeline, no gaps, no manual stitching.
GPS nails it outdoors. Wi-Fi covers you indoors for a fraction of the battery. Bluetooth pins down the zone where neither reaches. The tracker decides which to use as it goes, stretching a single battery to up to 10 years.
Explore the smart trackers
Wi-Fi geolocation works well. The trouble starts when you lean on one technology alone. Four problems come up again and again, and each one has a simple answer.
GPS nails it outdoors. Wi-Fi covers you indoors for a fraction of the battery. Bluetooth pins down the zone where neither reaches. Some of our smart trackers carry all three, and the tracker decides which to use as it goes.
| GPS-only tracker | Sensolus smart trackers |
|---|---|
| No indoor coverage. GPS signal disappears under any roof, dock, or warehouse | Automatic Wi-Fi fallback indoors, plus BLE zone-level verification. Coverage never stops |
| High power per fix. Continuous GPS polling drains battery in months, not years | Wi-Fi scans use far less power than GPS, so battery life stretches to years |
| Degraded in urban and covered areas. Signal reflection and obstruction reduce accuracy | Dense Wi-Fi infrastructure in cities becomes an asset. Every access point is a location fix |
| No private mapping. Relies entirely on satellite signal availability | Upload your own AP mapping. Indoor positions resolve from infrastructure you control |
| Data lost in dead zones. No connectivity means no record of where the asset was | Guaranteed data recovery. Location events stored onboard and sent when connectivity returns |
| Single technology. When GPS fails, tracking fails entirely | Three technologies, one firmware. GPS, Wi-Fi, BLE selected automatically based on context |
Wi-Fi geolocation is a positioning method that determines a device’s location by scanning nearby wireless access points and comparing their identifiers against a database. The device does not connect to any network. It simply listens passively. This works indoors and in urban environments where GPS signals are blocked or degraded, and uses far less power than a GPS fix.
In areas with dense Wi-Fi infrastructure, Wi-Fi geolocation typically achieves accuracy of around ten meters. This is less precise than GPS in open sky, but GPS does not work under roofs or in enclosed spaces. For asset tracking, ten-meter accuracy is sufficient to determine which building, zone, or dock an asset is in, which is the relevant question for most indoor operations.
No. Wi-Fi geolocation works by passively scanning nearby access points and reading their identifiers (BSSIDs). The device never joins a network, sends no credentials, and requires no authentication. It is entirely read-only from the network’s perspective. This makes it deployable in secure environments without IT configuration or network access permissions.
Select Sensolus smart trackers carry both GPS and Wi-Fi scanning in the same firmware. When the asset is outdoors with clear sky, the device uses GPS. When it enters a building, urban corridor, or covered dock, it switches to Wi-Fi automatically. The transition is handled by the device firmware with no manual configuration. Battery life extends to up to ten years because Wi-Fi scans use far less power than GPS polling.
In areas with no Wi-Fi access points (open rural roads, remote depots, or offshore environments), the Sensolus tracker automatically switches to GPS. If neither signal is available, the tracker stores location events onboard and sends them the moment connectivity returns, so no location data is permanently lost.
WiFi RTLS (real-time location system) typically refers to infrastructure-heavy setups that use installed access points to triangulate device positions in real time. Wi-Fi geolocation as used by Sensolus is different. The tracker passively scans nearby access points and resolves its position from a database, with no dedicated infrastructure required. This makes it far more practical for assets that move between sites, across borders, or through facilities you do not control.
WiFi indoor tracking uses existing wireless access points to estimate position at roughly ten-meter accuracy. BLE (Bluetooth Low Energy) tracking uses dedicated beacons to verify zone-level presence with higher precision. WiFi works wherever access points exist, with no added infrastructure. BLE requires beacon installation but delivers room-level or zone-level accuracy. Sensolus smart trackers combine both, using Wi-Fi for broad indoor coverage and BLE for precise zone verification.
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