8200-104C Clear Long-Term Chamber

Specifically designed for researchers interested in long-term net carbon exchange (NCE) measurements, the 8200-104C Clear Long-Term Chamber uses patented and trusted technology with updates to weather resistance and sensor compatibility. This line of chambers now accepts industry standard SDI-12 connections for digital communication with sensors.

A clear chamber allows sunlight to reach your plants during a measurement. The chamber automatically rotates to and away from collars for automated measurements over long periods of time.

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How are LI-COR chambers different?

The 8200-104C Clear Long-Term Chamber has been specially designed for NCE measurements. It includes technology and patents designed to minimize chamber impact on natural plant and soil activity with consideration toward:

  • Maintaining chamber pressure with ambient air.
  • Achieving air mixing without a fan.
  • Accounting for the impact of altered diffusion gradient on the flux.
  • Minimizing the impact of the chamber on your soil environment.
  • Allowing plant photosynthesis.
Learn more about the science and engineering behind the 8200-104C Clear Long-Term Chamber.

Net Carbon Exchange Measurements

With the 8200-104C Clear Long-Term Chamber, plants inside the chamber continue to receive light throughout a measurement. A clear-top chamber ensures that photosynthesis is not interrupted and enables you to measure NCE—a key variable for understanding ecosystem carbon balance. NCE is the gross primary production minus the ecosystem respiration.

LI-82100-104c Chamber


  • Dimensions: 48.3 cm L × 38.1 cm W × 33.0 cm H
  • Weight: 7.3 kg
  • Chamber Volume: 3955 cm3
  • Soil Area Exposed: 317.8 cm2
  • Weatherproof Rating: Tested to IEC IP55 standard
  • Air Temperature Thermistor:
    • Operating Range: -20 to 50 °C
    • Accuracy: ±0.3 °C from -20 to 50 °C
  • Light Sensor Current Input:
    • Range: 0 to 100 µA
    • Resolution: 1.5 nA
    • Accuracy: ±(0.37 % of Reading + 8 nA) from -20 to 50 °C
  • SDI-12 Communications Interface:
    • Max Number of Devices: 10
    • Output Voltage: 12 VDC, 200 mA

Specifications subject to change without notice.

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