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Patrol routes, reserves, and remote survey sites often sit well outside where cell networks reach. Nelos keeps your team in touch and visible on a shared map, without relying on carrier signal.
Carriers build towers for roads and towns, not reserves and backcountry
Cellular networks are built to cover where people live and drive, not deep forest, reserve boundaries, or remote survey sites. Once a patrol moves past the tree line or into a valley, signal drops out fast - and there's no easy way to check a teammate's position or send a quick update right when it matters most.
A radio network that travels with your team
Each team member carries their phone plus a small compatible LoRa device, connected over Bluetooth. Messages and locations pass between those devices directly - no cell tower, no carrier plan required.
Team messaging
Message your patrol or survey team directly, wherever the route goes.
Position on an offline map
See everyone's last known position on a map you downloaded before heading out.
Trackers for vehicles & equipment
Attach a small tracker to a vehicle or gear to keep tabs on it - no phone needed.
Need Help
One tap sends a Need Help alert with your exact location to the rest of the team.
A patrol spreads out across the route
One member checks a boundary fence line while another surveys a water source a kilometer away. Instead of losing track of each other, both show up on the shared map with their last known position, and a quick message confirms the rendezvous point - all without a single bar of signal.
What actually affects how far it reaches
LoRa radio range depends on terrain, elevation, tree cover, and line of sight - not just distance on a map. Dense forest or a deep valley will shorten range; open ground extends it. For a larger patrol area or a fixed field station, a compatible repeater left running at a high point can relay messages between team members who couldn't otherwise reach each other. We don't promise a specific range - it depends on your setup and the terrain you're covering. For a fuller walkthrough of the options, see our guide on off-grid communication and on whether you need a LoRa mesh repeater.
A compatible device for each team member
Anyone who wants to message the team or appear on the map needs a phone with Nelos and a compatible LoRa device paired over Bluetooth. See the devices guide for handhelds built for exactly this.
Nelos is a communication tool for your own patrol or field team, not a replacement for official emergency communication systems or professional rescue services. Coverage depends on terrain and equipment - it isn't guaranteed everywhere you patrol, so keep following your organization's standard safety procedures.
Related guides
Heading into the field without signal? Take your whole team with you.
Nelos keeps your team messaging and visible on a shared map with no cell service or Internet. Pick a supported device and set up in minutes.
Frequently asked questions
How far can Nelos communicate in the field?
Range depends entirely on your devices and the terrain - antennas, elevation, tree cover, and line of sight all matter. In dense forest that may be under a kilometer between team members; with open ground or a repeater, coverage can extend much farther. We don't guarantee a specific range.
Does every team member need their own device?
Anyone who wants to send messages or appear on the shared map needs a phone with Nelos and a compatible LoRa device. Simply installing the app on a phone with no LoRa device paired won't let that person send or receive over the mesh.
Is Nelos a replacement for official emergency or rescue communication systems?
No. Nelos is a communication tool for your own patrol or field team, not a substitute for official emergency communication systems or professional rescue services. Continue to follow your organization's standard safety procedures.
Can a repeater extend coverage across a larger patrol area?
Yes. A compatible repeater left running at a high point, such as a ridge or field station, can relay messages and locations between team members who couldn't otherwise reach each other directly.