Are You Emergency Ready? Keeping Messages and Sensor Data Moving When Networks Fail
A power cut. A damaged cable. A storm that closes roads and takes mobile coverage with it. A cyber incident that interrupts systems everyone assumed would always be available. The first question is practical: can the people who need information still receive it—and can they send a message back?
The UK Government’s Be Ready campaign, launched on 22 October 2026, asks households to prepare for three days of disruption to everyday services. For Tigertek, its Communication and information section points to a wider engineering challenge: keeping useful messages and sensor readings moving when normal connections are unavailable.
Three days of preparation—and a communications question
The Cabinet Office’s updated guidance covers disruption to power, water, phones and the internet. It encourages manageable preparation, built up gradually, with communities helping people who need additional support. The household advice is a useful starting point for businesses reviewing their own continuity arrangements.
Those who can follow this advice should follow this advice.
The wider importance of readiness was also underlined on 22 October by Defence Secretary Wes Streeting. In his Telford speech on defence industry and resilience, he said:
The threats we face are real, and they are closer to home.
Preparation turns that concern into action. At home, it starts with essential supplies and a plan. At work, it also means knowing which information must remain available, who needs to receive it and what will carry it if the usual route stops working.
The official Be Ready checklist
The checklist includes food and drinking water for three days, warmth and lighting, hygiene, medication and first aid, money and documents, and any baby or pet essentials. Under Communication and information, it specifies a battery-powered or wind-up FM radio and a charged power bank.
Receiving information is one part. Sending it back is another.
An FM radio can help you receive public information during an outage. A power bank can keep compatible equipment charged. Both belong in a practical preparedness plan. For a business, remote site or organised community, a further requirement may be two-way communication: a short message confirming that somebody has arrived, a task has been completed or assistance is needed.
The same principle applies to equipment. A generator can report its operating status. A water-level sensor can indicate a changing condition. A refrigeration sensor can flag a temperature excursion. Those small pieces of information can help a responsible person decide where to focus attention.
Tigertek brings message handling, sensing, communications integration and software development together. We can design for two-way data exchange between compatible endpoints where the selected equipment, protocol and service support it. That can include human-entered messages, automated status reports and acknowledgements—not simply a sensor transmitting into the unknown.
The useful design question is specific: which message must reach which person or system, by what route, within what time?
Mesh: another route for a message
In a suitably configured mesh network, participating nodes can relay information. A message may travel through intermediate devices instead of relying on one direct link to a distant collection point. Where the protocol and topology support alternative paths, a damaged or unavailable link need not be the only route.
For compatible local messaging, this creates the possibility of communicating independently of a fixed broadband connection or a public mobile service. It still requires powered equipment, working radio paths and a network designed for the location. Mesh does not make every phone a satellite phone, and it does not remove the need to plan.
Tigertek’s groundbreaking work applying Mesh to sensor data makes this capability part of an integrated engineering package. The same disciplined approach that connects a measurement to a useful decision can help define a resilient route for operational messages.
A family of technologies, selected around your needs
Emergency resilience is stronger when each connection has a clear job. Tigertek can assess and integrate different technologies rather than forcing every requirement onto one network. Our communications family includes:
Mesh networking: compatible endpoints and relay nodes for local messages and sensor information, with alternative routes where the chosen design supports them.
LoRa and LoRaWAN: low-power radio options for compact sensor readings and status information. LoRaWAN normally uses gateways in a star-style architecture; it should not be confused with mesh.
Bluetooth and Zigbee: local connectivity for suitable devices and sensors, with topology, interoperability and power use considered for the application.
Wi-Fi and wired connections: useful local or site infrastructure where available. A powered local network may support local communication even when its internet connection is lost.
Cellular technologies, including 4G, 5G and NB-IoT: options for mobile or dispersed equipment, subject to service availability, network operation and the chosen device and subscription.
Satellite IoT: an additional option for appropriate remote or infrastructure-limited deployments. Message direction, delivery timing, terminal requirements and visibility depend on the selected service.
These technologies are not interchangeable. A compact sensor report, an operational text message and a live video stream have very different requirements. Nor does every radio technology provide ordinary SMS, voice calling or automatic access to emergency services. Tigertek’s role is to select and integrate what the required information actually needs.
When a sensor reading becomes operational information
During disruption, an occasional, well-chosen status message may be more valuable than a large dashboard that cannot be reached. The information should tell somebody what changed, where it changed, when it was measured and whether action is required.
Illustrative requirements for a tailored deployment might include:
Power and equipment: mains present or lost; generator running or stopped; battery voltage approaching an agreed threshold.
Water and flooding: tank or bilge level, water pressure, unusual flow or a threshold requiring investigation.
Refrigeration and storage: temperature and humidity readings to help staff identify conditions needing attention.
Buildings and remote assets: door or gate status, movement events and appropriate environmental measurements.
Field operations: agreed check-in messages, task status and compact updates from compatible devices.
These are design possibilities, not a claim that every installation has every function. The sensor, interface, communications path, software and response procedure must work together. A missing reading must be distinguishable from a reassuring reading; a delayed message should not appear current.
A good specification therefore considers timestamps, message age, delivery acknowledgements where available, repeat or retry behaviour, alert priorities and clear ownership of the response. Tigertek can help turn those requirements into a system people can use.
Built around the environment you actually operate in
A warehouse, a coastal installation, a farm, an island and a building with thick walls present different challenges. So do a temporarily occupied site, a moving asset and equipment that must operate from a battery. The environment is the starting point for the solution.
Tigertek combines sensor selection and integration, radio planning, firmware and software development, encrypted data exchange and engineering support. We can tailor the design to the terrain, buildings, available power, message volumes, existing systems and budget—and test the proposed arrangement against agreed operating conditions.
Our distinctive strength is bringing that chain together through one engineering partner. Customers can discuss the operational outcome first, then work with us to choose the combination of technologies needed to achieve it. The result is a solution designed for the particular environment, rather than an assumption that one device or one network suits every setting.
Power, security and useful endurance belong in the design
Three days is a useful planning horizon, but 72-hour operation must be demonstrated for the actual system. Battery capacity alone is not enough: receive time, relay duties, reporting frequency, temperature, antenna arrangements and the power needs of any local controller or gateway all affect endurance.
Where appropriate, a design can consider backup batteries, low-power reporting, solar support and local processing. Any external backhaul—cellular, satellite or fixed internet—has its own dependencies. Two services sharing the same power source or physical route may provide less independence than they appear to.
Security matters during an outage too. Encryption, device identity, access permissions, protected keys and sensible handling of sensitive messages need to be considered together. An alternative radio path improves resilience only when the complete arrangement has been designed, configured and maintained properly.
A practical communications review for your business
Alongside the household checklist, Tigertek suggests asking these questions as part of a business continuity review:
What information is essential? Identify the few messages, measurements and alerts that people genuinely need during disruption.
Who must be reachable? Name the roles, locations and receiving systems, including a fallback if the usual contact is unavailable.
What can fail together? Review electricity, broadband, public mobile service, gateways and any hosted platform.
What is the local fallback? Establish whether essential exchanges can continue within the site or community using the proposed equipment.
How long will it operate? Test realistic power use, message activity and relay loading against the required duration.
How will users know what happened? Make stale data, failed delivery and successful acknowledgement clear where supported.
Who will act? Agree message priorities, check-in times, escalation routes and responsibilities.
Have you rehearsed it? Exercise a controlled outage scenario, record the result and correct the weaknesses before relying on the arrangement.
Start with a focused requirement and a practical pilot. Coverage measurements, power tests and a simple exercise can reveal far more than a long list of equipment features.
Make readiness part of everyday operations
A well-designed monitoring and communications system can earn its place before an emergency occurs. It can help teams understand equipment status, organise visits, investigate changes and reduce unnecessary uncertainty. The preparedness benefit comes from knowing how that system behaves when conditions become difficult.
For households and communities, begin with the official guidance and an agreed contact plan. For businesses, facilities managers, housing providers, landowners, remote-site operators and community organisations, Tigertek can help assess where tailored communications and sensing could add a useful layer of resilience.
Follow official instructions during an emergency. Tigertek systems should form part of an agreed preparedness plan, alongside public warnings and established emergency arrangements. In immediate danger, call 999 where you can; a private messaging or sensor network does not itself connect you to the emergency services.
Are you emergency ready? Let’s test the communications part.
Tell us about your environment, the information that matters and the connections you need to keep working. Tigertek can help scope, develop and integrate a solution using Mesh and the wider communications family, with sensing and software shaped around the job.
Plan the message. Choose the route. Check the power. Test the system.
