For municipalities, towns and crisis management
Warning systems and sirens for municipalities and crisis management
Timely public warning during floods, fires and chemical accidents. We supply the broadcasting station, sirens and wireless speakers with the option of integration into the Czech JSVV, and take care of grants, installation and service.
- JSVV integration option
- 72-hour blackout backup
- Sirens and voice announcements
- 24/7 monitoring and service

Warning you can rely on
We build warning systems for situations where seconds matter and the usual infrastructure fails.
How a warning works
From the emergency to monitoring of the whole system.
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1
Emergency
A flood, fire, chemical accident or other crisis that residents need to know about immediately.
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2
Starting the warning
Start a siren signal or voice announcement from the broadcasting station: manually, live into the microphone or using a prepared scenario.
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3
Sirens and speakers
The signal travels over the digital radio network to the sirens and speakers, which sound the warning and give residents clear instructions.
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4
Monitoring and service
The units continuously confirm they are working, the system keeps an event history, and we provide monitoring and service 24/7.
Warning system components
Our own broadcasting station, sirens and speakers. Where needed, we also integrate electronic sirens from proven partners.

CO 101 — Control Center
- central control terminal
- 72-hour battery backup
- JSVV compatible

CO 300 — Wireless speaker / siren
- wireless broadcasting/siren
- 72-hour battery backup
- street light pole mounting

CO 301 — Compact wireless speaker
- compact design
- 72-hour battery backup
- lightweight, durable, IP44
Grants for warning systems
We map Czech and European grant programmes, propose the optimal combination of financing and prepare complete application documents. As the manufacturer, we also offer our own installment plan.
Explore financing optionsFrequently asked questions
What is a municipal warning system?
A broadcasting station, sirens and wireless speakers that a municipality uses to warn residents during emergencies and give them crisis information. The same system also serves as a modern public address system for everyday announcements.
Can the system be connected to the Czech JSVV?
Crisis One components can be integrated into the Czech Unified Warning and Notification System (JSVV) as required by the Fire Rescue Service of the Czech Republic. Connection of an end device to the JSVV is approved by the regional fire rescue service if the device meets the technical requirements set by the Directorate General of the Fire Rescue Service (Section 9(7) of Decree No. 380/2002 Coll.). We discuss the procedure with you when designing the solution.
What happens during a power or communication outage?
All components have their own backup power for at least 72 hours. Sirens and speakers can operate independently even if they lose connection with the broadcasting station, store local warning scenarios and can respond to emergencies automatically.
Which sirens and speakers do you supply?
The CO 300 siren speaker with 100 W acoustic output and IP65 protection, the compact CO 301 speaker (4 × 20 W, IP44, approx. 5 kg) and the CO 101 broadcasting station. Where needed, we also integrate electronic sirens from proven partners.
Is the system suitable for crisis management teams?
Yes. The system is also designed for crisis management, flood protection and automated warning for crisis management teams. The CO 101 broadcasting station allows integration into higher-level warning structures.
Can we get a grant for a warning system?
We help you find a suitable Czech or European grant programme, prepare complete application documents and make sure the grant conditions are met from implementation to the final evaluation. As the manufacturer, we also offer our own installment plan.
Who looks after the system after installation?
We are one partner for everything: software, hardware and field work. After installation we provide continuous monitoring, service and technical support.
Get a free solution proposal
Tell us which area you need to cover with warnings. We'll get back to you and prepare a free project plan and coverage proposal.