Australian made · water quality sensors

Built for the river, not the lab.

Accurate. Reliable. Supported. Greenspan water quality sensors are designed and manufactured in Melbourne, and have spent 30 years logging rivers, bores and estuaries in the harshest conditions on earth.

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Upstream · made

Australian made

Every Greenspan sensor is designed and manufactured in Australia, by Melbourne engineers with decades of sensor design and construction behind them.

Midstream · supported

Australian supported

Our Melbourne service centre does full servicing, repair and calibration. If a sensor needs attention, it is back in the water fast — no overseas round trip.

Downstream · reliable

Australian reliability

Designed and built for the harshest environments and climates, and covered by our warranty. These sensors live outdoors for a living.

Sensors · the flagship four

One probe for every parameter

Highly accurate, honestly affordable — every sensor designed, built, serviced and recalibrated in Melbourne.

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A reservoir intake tower and its footbridge beneath forested ridges

Optional integrated battery

A year of data. No solar panel, no mains power - no problem.

Fit any Greenspan logging sensor with the integrated battery pack and walk away — it logs water quality unattended for 6 to 12 months. No external power, no cabling, no excuses for a data gap.

Multi-parameter sondes

Six parameters. One cable.

The MP and MQ multi-parameter sondes measure up to six water quality parameters simultaneously — EC, DO, turbidity, pH, ORP and depth from a single instrument on a single cable.