Wireless Optical Dissolved Oxygen Sensor

The Wireless Optical Dissolved Oxygen (ODO) Sensor is the perfect solution to monitor DO2  in the lab or the field.

No need for an interface. Long lasting, rechargeable battery.


The Wireless Optical Dissolved Oxygen (ODO) Sensor is the perfect solution to monitor DO2  in the lab or the field. Optical technology is accurate, fast, and does not need flow or calibration.
The Wireless Optical DO Sensor actually contains three different probes. In addition to dissolved oxygen, there are also probes for atmospheric pressure and the water temperature.

A PASCO exclusive feature allows you to log data using the sensor’s built-in memory. After hours or even days, connect the sensor to your device and download the data. You can capture day/night nutrient cycles, changes in metabolic processes and more.

With the included cover, the sensor has a waterproof design and is submersible to 10 m.

No need for an interface.
All PASCO Wireless Sensors connect to computers, Chromebooks, and tablets, through Bluetooth 4. No other equipment required! Our software (SPARKvue or PASCO Capstone) allows students to see and analyze data in real time.

Long lasting, rechargeable battery
The Wireless Optical Dissolved Oxygen Sensor draws as little current as possible. This provides you with long battery life for lab activities. Our software also displays the battery level at all times. If it dips too low, connect the USB cable to charge while you collect data.

Typical Labs and Applications

  • Photosynthesis
  • Respiration
  • Fermentation
  • Monitoring water quality
  • Investigating watersheds
  • Measuring net primary productivity
  • Modeling ecosystems
  • Exploring how temperature affects the amount of dissolved oxygen


  • Wireless Optical Dissolved Oxygen Sensor
  • Sensor Cap
  • USB Cable (for recharging and optional direct connection)

Software Required

This product requires or recommends PASCO software for data collection and analysis. Either SPARKvue software or PASCO Capstone software may be used.


In logging mode wireless sensors collect data to their onboard memory for hours, days, weeks or even months at a time without needing to be connected to a computer, tablet, Chromebook or smartphone.

When the experiment is concluded, simply connect the sensor to a device running PASCO software and download all the measurements it recorded.



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