The cost-effective solution for measuring temperature and depth underwater… giving accurate and reliable results in all water environments.
AQUAlogger® 520 is a miniature instrument, capable of monitoring accurate temperature and pressure measurements at depths of up to 1000m. The device is a flexible alternative to thermistor chains, given its self-contained design. The AQUAlogger® 520 is an appropriate instrument for both ocean and environmental applications.
Applications include:
AQUAlogger® 520 Instrument Guide

Up to 25-hour mission duration
Speeds up to 4.2 knots
Increased module payload capacity
Search and recovery
Hydrography
Deep sea mineral exploration
Marine & Fisheries research
AQUAlogger® 310TY, the advanced turbidity and suspended sediment logger. Ideal for research, water quality studies and dredge monitoring.
Read moreThe AQUAscat range are market leading instruments that use multi-frequency acoustics to observe profiles of suspended sediment concentration up to 10m in range.
Read moreThe AQUAlogger® series includes standalone data loggers to produce precise long term records, wireless instruments for use on commercial fishing vessels and deep water loggers.
Read morePrecision Under Pressure: BlueZone’s Eight‑Day Subsea Success
Eight Days, Ten Cables, One Epic Holiday Turnaround While most businesses were winding down for the holidays, BlueZone was powering up. As December 2025 raced toward Christmas, our workshop...
Read MoreRapid, Reliable, Ready: The Littoral Riverine Survey System in Defence Hydrography
When military operations hinge on understanding what lies beneath the waves, deployable hydrographic survey systems like the LRS become essential tools for safe, informed decision‑making. Military hydrographic...
Read MoreKraken MP‑SAS: Portable Synthetic Aperture Sonar for Modern Maritime Missions
With Kraken’s MP‑SAS and BlueZone Group’s trusted in‑country support, Australian operators can now access a proven, portable SAS solution built for modern maritime missions. As the demand...
Read More