Northland develops new plug-in tsunami sirens

Northpower electrician Simon Jones and Northland Civil Defence’s Victoria Harwood with the new mini-warning boxes, designed for anyone unable to hear existing outdoor sirens.

New indoor tsunami sirens have been developed for Northland coastal residents, businesses and visitors who are unable to hear any of the 191 outdoor alarms in the region.

The plug-in sirens include a flashing blue light as well as a loud alarm and they are synchronised to operate in tandem with the outdoor sirens.

The new devices have been developed over the past year by Northland Civil Defence Emergency Management (CDEM) Group and Northpower, and they are being sold at cost for $155.25 each from the Northland Regional Council’s office in Water Street, Whangarei.

Northland CDEM spokesperson Victoria Harwood says they will only operate on Northland’s Northpower or Top Energy networks.

“Purchasers must make sure to buy the correct indoor siren designed to operate in their local power network, otherwise they won’t work,” she says.

They also have to buy the lunchbox-sized device in person and run through a short session on how to install and use it before taking it home.

Both the new indoor alarms and outdoor sirens will sound simultaneously in the event of a genuine tsunami warning, as well as during regular twice-yearly regional testing, at the start and finish
of daylight saving.

Anyone considering an indoor siren and wanting to check whether their home or business is in a tsunami evacuation zone, can check by entering the street address at To hear the indoor siren’s sound, or for more information, visit


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