VERNIER PAR SENSOR
Vernier's PAR (Photosynthetically Active Radiation) Sensor measures photosynthetic light levels in both air and water.
The sensor reports the Photosynthetic Photon Flux Density (PPFD) which corresponds to micromoles of photons per meter squared per second (μmol m-2 s-1). This is the power of electromagnetic radiation in the spectral range that is used by plants for photosynthesis (400–700 nm).

The PAR sensor features a waterproof sensor head and can be used to measure PPFD from sunlight and electric light sources. Ideal for experiments investigating photosynthesis and primary productivity, the Vernier PAR sensor can be used in many agricultural and environmental science applications

Requirements:
This sensor requires suitable software and an interface such as one of the Vernier LabQuest variations or Vernier Go-Link.
For comprehensive details of the possible sensor/interface/software combinations see the Compatibility Guide link below.

Specifications:
• PAR Range: 0 to 2000μmol m-2 s-1 (PPFD) in full sun
• Absolute Accuracy: ±5%
• Repeatability: ±1%
• Long-Term Drift: Less than 2% per year
• Cosine Response:
     45° zenith angle: ±2%
     75° zenith angle: ±5%
• Wavelength range: 410nm to 655nm
• Resolution (LabQuest2, LabQuest, LabQuest Mini, Go!Link, LabPro): 1μmol m-2 s-1 (PPFD)

Included:
• Vernier PAR Sensor
• PAR Sensor lens cover
• User manual

Educational use only:
Vernier and Kidwind products are designed for educational use. They are not appropriate for industrial, medical or commercial applications. Details

• Warranty: 5 year limited warranty

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  Dimensions
  • Package size (HxWxD): 25x152x229mm
  • Packed weight: 200g

    Last edited 9th Jan 2025

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    Videos:
    
    Vernier PAR Sensor PAR-BTA Tech Tips
    
    
    Vernier PAR Sensor Indoor Calibration PAR-BTA Indoor Use Tech Tips
    
    
    This product is used in teaching these Australian Curriculum codes:
    ACSBL052 - Biodiversity and the interconnectedness of life - Ecosystem dynamics - Photosynthesis is a biochemical process that in plant cells occurs in the chloroplast and that uses light energy to organic compounds; the overall process can be represented as a balanced chemical equation
    ACSBL045 - Cells and multicellular organism - Cells as the basis of life - The cell membrane separates the cell from its surroundings and controls the exchange of materials, including gases, nutrients and wastes, between the cell and its environment
    
    Click a curriculum code to see other products that relate.

    Works with:	From
    LABQ2 - Vernier LabQuest 2 Data Logger and Interface
    LQ-MINI - Vernier LabQuest Mini Data Logger Interface	$470.00
    GA4 - Vernier Graphical Analysis
    GO-LINK - Vernier Go!Link Data Logger Interface with Logger Lite Software	$186.00
    EZ-LINK - Vernier Easy Link	$196.00
    Similar Products:	From
    PYR-BTA - Vernier Pyranometer - Solar Power Meter	$693.00
    GDX-PAR - Vernier Go Direct PAR Sensor	$743.00
    GDX-PYR - Vernier Go Direct Pyranometer	$743.00

    Documents:
    Catalogue	Vernier Catalogue K-12
    Catalogue	Vernier Catalogue Uni
    Catalogue	Scientrific April 2025 Mini Catalogue
    Catalogue	Vernier 2025 K-12 Catalogue
    Catalogue	Vernier 2025 University Catalogue
    Compatibility Guide	Sensor-Interface-Software Requirements (external link)
    User Manual	Vernier PAR Sensor

    
    Note: Prices do NOT include GST or freight