Hydrolab DS5/DS5X

Multiparameter sonde

Part # DS5, DS5X


For maximum capability and flexibility, the DS multisondes offer the choice of any of Hydrolab’s 17 sensor options on a multiprobe designed for either profiling or unattended monitoring. Each features seven built-in expansion ports, and can measure up to 15 water quality parameters simultaneously.

Long-term unattended operation can be achieved by paring the DS5/DS5X with the internal battery pack option. The sonde can record up to 120,000 individual readings in internal memory. They both have seven ports for your choice of water quality sensors.

For maximum deployment life and minimum maintenance, the Hydrolab DS5X offers Hydrolab’s Superior Sensor Technology on a multi-parameter platform with a self-contained, automatic cleaning system that increases time between manual cleaning by wiping away sediment and bio-fouling that may be collecting on the sensors.

For both, SDI-12, RS-232, and RS-485 are communication options.

Sensors available:

  • LDO (luminescent dissolved oxygen)
  • Temperature
  • Dissolved Oxygen
  • Conductivity
  • pH
  • Depth/Vented Level
  • Turbidity: Self-Cleaning
  • Turbidity: 4-Beam
  • ORP (Oxygen Redox Potential)
  • Chlorophyll a
  • Blue-Green Algae
  • Rhodamine WT
  • Total Dissolved Gas
  • Ion-Selective Electrodes (Ammonia/Ammonium, Nitrate, Chloride)
  • PAR (sunlight intensity)

What's the Easiest and Quickest Way to Start Collecting Data and Access it Anywhere?

The Answer's in the Cloud.

eTracker is a cellular modem and "virtual" cloud-based data logger in one (meaning you don't need to install a separate data logger). Simply connect your sensor and a power source to eTracker and you're done. Configure (or reconfigure) anytime from any Internet-connected device, and use Stevens-Connect to retrieve your data, or forward it to your favorite software system.

Technical Specifications

Outer diameter

3.5” (8.9 cm)


23” (58.4 cm)


7.4 lbs (3.35 kg) typical

Communication interface

RS-232, SDI-12, RS-485


Up to 120,000 measurements

Battery supply

8 C batteries (with available internal battery pack option)

Operating temperature

23° F to 122° F (-5° C to 50° C)

Maximum depth

656 ft (200 m)