Health: exposure measured where people live: its open projects and data. The loop, step by step: 1. A valley site at first light. 2. The chain from source to console stands ready. 3. Cloud and wind sweep up the valley. 4. The station and the vault register it. 5. Each reading is stamped with time and place. 6. Signed packets hop over the radio link. 7. The relay forwards sealed packets untouched. 8. Signatures are checked before any model runs. 9. The edge model checks it against its limit. 10. The edge releases confirmed results only. 11. The alert reaches the operator console. 12. The console shows the evidence with the alert. 13. Record, proof and action are archived together. 14. Everything settles back to idle.
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A valley site at first light
Nexus Observatory/
Health/
OpenOpen projects, open methods and open templates this community builds on, with the licence of every source carried through.
Plan a deploymentUse casesOpen the explainerHealth · Open
Exposure, measured where people live
Air quality, heat and water monitoring for public-health programmes, exposure data aligned with the places it affects, and connectivity for clinics at the edge of the network. Needs: fine particles and ozone, heat and humidity, drinking-water quality, conditions for disease vectors and connectivity for clinics.
Open · Sensors & instruments
Open with Sensors & instruments
Metadata and quality rules and Open networks on the grid: free to use and build on. The enterprise layer adds sensing as a Service, Calibration programmes and Qualification, delivered under contract by Nexus Observatory Inc. Open methods let anyone check how a product was made.
Open · Data & licensing
Open with Data & licensing
Open tier and Dataset cards: free to use and build on. The enterprise layer adds paid tiers and Residency by contract, delivered under contract by Nexus Observatory Inc. Open methods let anyone check how a product was made. Service levels are written as numbers you can measure.
Open · Connectivity
Open with Connectivity
Band tables and sources, Country guides and Coverage methods: free to use and build on. The enterprise layer adds private Wireless as a Service, AI-RAN deployment and Spectrum route support, delivered under contract by Nexus Observatory Inc. Open methods let anyone check how a product was made.
Open · Field services
Open with Field services
Guides, Templates and Lifecycle: free to use and build on. The enterprise layer adds eight services and Government buyers, delivered under contract by Nexus Observatory Inc. Open methods let anyone check how a product was made. Every reading and every change leaves a record that can be checked later.
Trust
Every node proves what it is
A node joins only after its hardware root of trust answers an attestation challenge. Keys stay in secure hardware, software arrives signed, and every reading carries a signature, so its origin can be checked by anyone downstream without asking us.
Time and place
Every reading carries when and where
Readings are stamped against a disciplined clock, from satellite time or a PTP grandmaster, together with the station position and its siting record. When time or position is degraded, the record says so instead of hiding it, and every analyst downstream sees the same warning.
How it scales
One base unit, repeated
A programme starts with one base node and the instruments it reads. A station adds power and radio, a site adds a relay, a fleet repeats the proven site across many places, and a network federates fleets through edge and core. Capacity grows by adding units, never by replacing what works.
Updates
Updates in rings, with rollback
Software and configuration reach the fleet in rings: a canary site first, then a few, then all, each ring gated on health and data completeness. A failed gate stops the wave and returns each node to its last good release, without a site visit.
Operations
Every node watched, every incident closed
The operations console shows every node with its state, its plan and its evidence. Alerts arrive with their data and a runbook; acknowledging one opens a work order, and an incident closes only when the cause is recorded and the fix verified.
Field service
One crew, from survey to repair
The same crew surveys, installs, commissions, calibrates and repairs, working from the site’s own record. Each visit updates it, so the next crew knows exactly what is there, when it was last checked and why it was changed. Spares and references are planned from that history.
What you get
Environmental exposure monitoring for health programmes
Heat, air and water exposure measurements around facilities and communities; no diagnosis or treatment. Delivered as managed service and data licence, for health authorities, hospital networks, employers. Scale: City to national. Service levels are written as numbers you can measure on your own dashboard.
Talk to salesNext step
Plan a health deployment
Tell us the sites, the measurements and the people who will use them. We reply with a design and a scope for health. An engineer replies with a survey proposal and a scope, and the plan grows from one site to the network you need, at your pace.
Plan a deploymentOpen the StudioRead the stories
01Open projects
What this community builds on.
Open hardware, software and data projects, named as references. Each keeps its own licence and its own governance.
- Sensor.Community
- OpenAQ
- FloodNet
- Smart Citizen Kit
- Telraam
- openSenseMap
- Safecast
- AudioMoth
- FLUXNET and ICOS tools
- Global Forest Watch
02Open methods and templates
Every calculation, with a worked example.
Observatory templates for this industry, each a starting design you can read, run and adapt on the open protocol.
TemplateHybrid air-quality observatory
A few reference analysers and many low-cost nodes, with co-location calibration and an open-data feed.TemplateStreet flood observatory
Ultrasonic depth sensors on poles report street-level water depth as open data and alerts.TemplateSchool connectivity observatory
A connected school as an observatory node: backhaul, Wi-Fi, a connectivity probe and an optional weather and air-quality station.TemplateStadium operations private 5G slice
A private 5G slice for venue operations beside the neutral-host network, with crowd, heat and air sensing.TemplateMethane fenceline observatory
Point sensors on the fenceline with optical gas imaging and quantification, feeding leak-detection reports.TemplateBioacoustic biodiversity observatory
Open-hardware acoustic recorders on solar power with low-power radio or satellite uplink, for species baselines.TemplateLow-cost stream gauge network
Radar or pressure level sensors with low-power radio and solar power, as a cheaper tier beside a national gauge network.TemplateResearch-infrastructure gap node
A standardised observation package with a FAIR data pipeline, built to extend a research infrastructure’s coverage.03Open data
Networks on the grid, with their licences.
The open observing networks on the grid, each shown with its source and licence, and the protocol that lets new ones join.
01
Open networks
Instruments from open networks, on real relief.Earth and maps →
02
Sources and licences
Every dataset with its source and the terms it is used under.Data credits →
03
The protocol
The open specification any instrument or network can implement.Read the protocol →
Bring us the site.
Survey, design, deployment and operation for health. The form names who receives your details.
Talk to usPlan a deployment