General News
7 September, 2025
World-first hi-tech crocodile detection system
A CAIRNS-based company is breaking new ground in public safety with a world-first crocodile detection system.

NorthWatch Technologies has secured $100,000 through the Queensland Government’s Private Sector Pathways (PSP) Challenge to develop its innovative Croc Detection System (CDS-1) buoy.
The buoy combines advanced sonar with Artificial Intelligence robotics, offering 24/7, 360-degree monitoring within a 50m radius.
It can detect crocodiles, estimate their size and threat level, and track their movements even when they are stationary.
The technology aims to complement the QWildlife app, which currently relies on public crocodile sightings to inform wildlife rangers.
Environment and Tourism Minister Andrew Powell said the initiative “is a shining example of Queensland innovation benefiting both people and the environment”.
Member for Barron River Bree James said public safety was “our top priority”.
“This world-first sonar and AI buoy will give us eyes underwater, 24 hours a day, providing real-time alerts to help people make safer decisions in crocodile habitats across Queensland,” she said.
NorthWatch Technologies director Peter Jarvis said the buoy was inspired by a personal desire to improve public safety in crocodile habitats.
“I grew up living in a location where crocodiles also live and currently only see public signs placed near waterways, so I feel honoured to be selected and that QPWS believes my system could support crocodile management,” he said.
The prototype will be developed over the next eight months in Cairns, bringing Queensland a step closer to a more innovative, safer approach to crocodile management.