Infrastructure for the mesh.
Dedicated always-on relay hardware that extends SiteTalkie coverage across entire multi-storey construction sites. Mount it, plug it in, scan the QR. It joins the mesh automatically.
Mount the node. Plug in power.
IP65-rated enclosure mounts to walls, ceilings, or scaffolding. Stairwells, lift lobbies, and dead zones are ideal placement points.
Standard USB-C mains connection. Always-on operation, draws under 15W. Optional battery backup for areas without permanent power.
Scan the QR. The mesh extends.
Open SiteTalkie, scan the QR code on the node. It registers to your site mesh automatically. No laptop, no IT department, no configuration.
The node relays all messages between phones 24/7. Coverage extends through concrete, between floors, across the entire site. Even when workers go home.
What happens on site
Cardiac arrest. Every phone becomes a first responder.
Worker collapses on Level 6. Bystander hits SOS, selects Cardiac Arrest. Instantly: CPR instructions on every phone. Photo of the nearest defibrillator with directions. Workers closest to the casualty flagged automatically. 3 minutes to defibrillator — not 8. All over BLE mesh. No signal needed.
Photograph a defect. It’s on the dashboard before you climb the stairs.
Plumber finds a leaking pipe in the basement. Drops a snag pin with photo. Image transfers over BLE to the nearest SiteNode, uploads to the dashboard kanban. Site manager sees it remotely — Unconfirmed, Open, In Progress, Review, Closed. Full snag lifecycle. No signal needed at point of capture.
£30 per node. Not £500 per month for site WiFi.
One SiteNode covers a stairwell. Six cover a multi-storey building. No ISP contract. No IT department. No access points, no routers, no passwords. Plug in USB-C power, scan the QR, walk away. Full mesh comms for a fraction of temporary WiFi.
110 dB concrete cutting. The fire alert their ears never heard.
On a loud site, nobody hears a shout. SiteTalkie delivers alerts as text, vibration, and full-screen overlay simultaneously. A fire evacuation alert hits every phone on site — even in the noisiest zones, even underground, even when radios can’t penetrate.
Specifications
BLE Range
5–8 dBi antenna gain. 30–50m through concrete.
Ruggedised
170×220mm body, approximately 380g.
Compute Module
Raspberry Pi CM5, 4GB RAM, 32GB storage.
Zero-knowledge relay
AES-256 encryption. Nodes relay but never read.
Optional bridge
WiFi uplink to cloud dashboard. BLE mesh operates independently.
Remote updates
Firmware updates over WiFi bridge. No site visit needed.
USB-C Power
Under 15W typical draw. 27W USB-C PD maximum. Standard USB-C mains adapter.
Scan to setup
Open SiteTalkie, scan the QR. Node joins the mesh automatically.
Phones alone aren’t enough.
SiteTalkie works phone-to-phone. SiteNode guarantees coverage even when workers aren’t nearby.
Without SiteNode
Coverage depends on how many phones are nearby
Mesh collapses when workers leave an area
Dead zones in stairwells, risers, and empty floors
No coverage overnight or on weekends
SOS alerts may not reach ground floor
With SiteNode
Always-on relay nodes guarantee baseline coverage
Mesh stays active 24/7 regardless of worker locations
Strategic placement eliminates every dead zone
Weekend and overnight security stays connected
SOS alerts always route to ground floor via node chain
Pricing
- IP65 ruggedised hardware
- Dual external antennas
- 150m BLE range
- QR code setup
- Firmware updates included
- Swap/replace warranty
- Site survey and placement plan
- 6–12 nodes installed
- Stairwell + dead zone coverage
- Dashboard access
- Ongoing support
- Scale up or down as build progresses
- Full hardware deployment
- Professional installation
- 3 months free operation
- No commitment after pilot
- Case study participation
- Priority ongoing pricing
Apply for the free pilot programme.
We’re deploying SiteNode at zero cost on qualifying UK construction sites. You get full mesh coverage for 3 months. We get real-world data and a case study. No commitment after the pilot ends.
SiteNode extends SiteTalkie.
Free Bluetooth mesh messaging for every worker on site. No signal required. SiteNode is the hardware backbone that guarantees coverage.