• Introduction

    Tsunado is a system to distribute Alerts in a Civil Emergency, such as Tsunami, Fire, Flood, Chemical spill, etc.
  • Alerts

    Tsunado Alert radios contain a high intensity alarm, similar to that in a smoke alarm, to get attention any time day or night
  • Information

    Central to the Tsunado Alert Radio is a radio receiver that can deliver the radio signal through a speaker, informing the public of what to do.
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How the Tsunado System Works




How to Buy TSUNADO Alert Radios

TSUNADO Alert Radios are required to be managed by an Alerting Authority. As this has yet to be established in New Zealand, we are unable to sell them direct to the Public.

The TSUNADO System has been ready to go for over two years now, so it is imperative that it be employed ASAP.

Once the Alerting Authorities in your area support TSUNADO, we are able to configure them for that area, and sell them to you.

if you wish to register your interest in purchasing a TSUNADO Alert Radio, the please email us at This email address is being protected from spambots. You need JavaScript enabled to view it. with your contact details.

In the meantime we encourage everyone to speak to their local MP and local Councillors to impress on them the need for an effective public alerting system, and support the TSUNADO System.



White Papers

The Three States of Emergency Public Alerting

Communications related to disaster events are important to save lives. This Paper considers the three types of communication that contribute to an effective strategy to ensure that when disaster strikes, there is minimisation of damage to life and property.

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A Comparison Between Broadcast Radio and Cellular Technologies for Emergency Public Alerting

TSUNADO New Zealand Limited (aka DIWA) has developed a system for nationwide Public Alerting based on Broadcast Radio technologies. The decision to use Broadcast Radio and Satellite systems as the primary communication channel, as opposed to cellular and internet based technologies, is outlined in this White paper.

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Waking a Sleeper

TSUNADOAlert Radios are provided with an internal alert device similar to smoke alarms. This White paper outlines how different and effective the TSUNADO alert is in waking a deep sleeper.

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ALERT Get Attention

The prime function for Tsunado alarms is to get the owner's attention, anytime day or night.

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INFORM Provide Information

The secondary feature, but by no less important, is to inform the owner of what to do.

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Save Keep you Safe

By delivering alerts quickly and informing owners of what to do, Tsunado saves lives.

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Register Your Tsunado Unit

This is where you can Register your Tsunado Unit.

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Innovative Partnership in Emergency Management and Public Alerting

CLOUD M and Tsunado NZ are delighted to announce a new joint approach to public alerting solutions which will see the development of an innovative relationship to help promote resilience and safety for all New Zealanders.  

CLOUD M built and delivered the Auckland Civil Defence & Emergency Management (CDEM) alerting platform and native mobile phone application (Alerter) with in excess of 50,000 registered users.  This has been successfully operational for the last two years and is currently being considered for national use. Alerter helps the CDEM agency alert the public of emergencies, keeping them informed of emergency response, and helps prepare them to cope during a disaster. It also helps the public take care of themselves and each other. It connects close friends and loved ones in a secure, private network, and helps households develop and manage household emergency plans. 

Tsunado NZ has developed a unique public alerting system known as TSUNADO, which has been built to provide geo-targeted alerts across the country, using satellite and FM radio to distribute the alerts.  TSUNADO  continues to receive information even when there is no power, mobile or internet availability.   

The system uses simple, unobtrusive Alert Radios  placed in the home, which sound a warning (similar in loudness to a smoke detector).  The Alert Radios display a text message to the user, and then automatically connect to an audio feed from a local radio or satellite TV station to provide further information.  With inbuilt rechargeable batteries, authorized information is able to be continually received for up to five days after an emergency event.The TSUNADO devices replace the need for a battery operated radio, which is an essential component of every recommended emergency survival kit.

Read more: Innovative Partnership in Emergency Management and Public Alerting

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