Vernier - Go Direct® Optical Dissolved Oxygen Probe

The Go Direct Optical Dissolved Oxygen Probe combines the power of multiple sensors to measure dissolved oxygen, water temperature, and atmospheric pressure. Ideal for experiments in biology, ecology, and environmental science courses, the Go Direct Optical Dissolved Oxygen Probe uses luminescent technology to provide fast, easy, and accurate results. Perfect for the field or for the laboratory, this probe requires no calibration, no filling solution, no warm-up time, and no stirring.

This waterproof probe is ready to sample dissolved oxygen immediately without additional setup or the need to warm it up—so more class time can be spent on the investigation.

The Go Direct Optical Dissolved Oxygen Probe can be used in a variety of experiments:

• Investigate the relationship between temperature and dissolved oxygen in water.
• Measure primary productivity or biological/biochemical oxygen demand.
• Explore the interdependence of plants and animals.
• Monitor watersheds over time.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our award-winning Vernier Graphical Analysis^® app, as well as LabQuest^® 3. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wireless or Wired—The Flexibility to Choose

Our Go Direct sensors connect directly to your mobile device, Chromebook^™, or computer using our Vernier Graphical Analysis^® app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth^® wireless technology, allowing you to choose the best solution for your classroom or laboratory.

Specifications

• Range: 0 to 20 mg/L, 0 to 300%
• Accuracy:
  • mg/L
    • ±0.2 mg/L below 10 mg/L
    • ±0.4 mg/L above 10 mg/L
  • %
    • ±2% below 100%
    • ±5% above 100%
• Response Time: 90% of final reading in 40 seconds
• Temperature Range: automatic from 0 to 50°C
• Pressure Range: automatic from 228 mmHg to 1519 mmHg
• Minimum sample flow: none required

Experiments

Middle School (1 experiments)

High School (15 experiments)

College (15 experiments)

Requirements

Choose a platform below to see its compatibility requirements.

LabQuest

Compatibility Notes

1. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter (discontinued) when used with some older LabQuest 2 models.

Computers

Compatibility Notes

1. Connect this sensor directly to a computer or Chromebook via a USB or wireless Bluetooth^® connection for best results. Alternatively, this sensor is fully supported when used with LabQuest 2 or LabQuest 3 when the LabQuest is connected via Wireless Data Sharing.
2. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter (discontinued) when used with some older LabQuest 2 models.

Chromebook

iOS

Compatibility Notes

1. Data can be collected using the sensor’s default calibration only.
2. Connect this sensor directly to a supported mobile device via a wireless Bluetooth^® connection for best results.
3. iOS and Android^™ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
4. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter (discontinued) when used with some older LabQuest 2 models.

Android

Compatibility Notes

1. iOS and Android^™ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
2. Connect this sensor directly to a supported mobile device via a wireless Bluetooth^® connection for best results.
3. Wireless connection of this sensor to a LabQuest 2 requires a Go Direct Bluetooth Adapter (discontinued) when used with some older LabQuest 2 models.

Python

Javascript

Compatibility Notes

1. A wireless Bluetooth^® connection can be made with Go Direct sensors on any platform running a browser with WebBluetooth support. However, only a few operating systems have been tested and testing has been limited.

Arduino

LabVIEW

What's Included

• Go Direct^® Optical Dissolved Oxygen Probe
• Micro USB Cable