Vernier - Go Direct CO2 Gas Sensor

Monitor changes in carbon dioxide, temperature, and relative humidity easily with the Go Direct CO₂ Gas Sensor. This sensor includes built-in temperature compensation and humidity protection. A 250 mL Nalgene bottle is included for running controlled experiments with small plants and animals.

The Go Direct CO₂ Gas Sensor is ideal for the following experiments:

• Measure the change in gas concentration during cellular respiration.
• Measure the change in gas concentration during photosynthesis.
• Study the effect of temperature on cell respiration or metabolism of organisms.
• Investigate artificial selection in yeast by comparing respiration rates of different strains.

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

• CO₂ Sensor
  • Type: NDIR
  • Range: 0–100,000 ppm
  • Accuracy: 0–100,000 ppm: ±(100ppm＋5% reading value)
  • Resolution: 1 ppm CO₂
  • Warm-up Time: 180 s
  • Gas sampling mode: diffusion
• Temperature Sensor
  • Range: –10 to 50°C
  • Accuracy: ±0.4 °C
  • Type: IC
  • Resolution: 0.1°%
• Relative Humidity Sensor
  • Range: 0–100% (non-condensing)
  • Accuracy: ± 2%
  • Type: IC
  • Resolution: 0.1°C

• USB specification: 2.0
• Wireless specification: Bluetooth 4.2
• Maximum wireless range 30 m unobstructed
• Battery: mA Li-Poly
• Battery life (single full charge): ∼8 hours
• Battery life (long term): ∼500 full charge cycles (several years depending on usage)
• Normal operating temperature range: 20–40°C
• Operating humidity range: 5–95% (non-condensing)
• Dimensions: Sensor tube: 82 mm length, 28 mm OD; total length: 200 mm

Experiments

High School (23 experiments)

College (23 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. Connect this sensor directly to a supported mobile device via a wireless Bluetooth^® connection for best results.
2. iOS and Android^™ devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
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.

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^® CO₂ Gas Sensor
• Micro USB Cable
• 250 mL Nalgene Bottle w/Lid