PAR-380 Quantum PAR Meter Photo Synthetically Active Radiation PPFD Tester for Plant Lighting Horticulture, Research Study of Indoor and Outdoor Plants

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This Quantum meter device is designed to measure the flux of Photo Synthetically Active Radiation (PAR) within the wavelength range of 400 to 700 nanometers (nm). PAR represents the spectrum of light that is essential for photosynthesis in plants.

Plants possess pigments called chlorophylls that are capable of capturing photons within this specific range of wavelengths. These photons provide the energy necessary for photosynthesis, the process by which plants convert light energy into chemical energy to fuel their growth and development.

By measuring the PAR flux using a Quantum meter, researchers and horticulturalists can assess the intensity of light available for photosynthesis. This information is crucial for horticultural studies and monitoring plant physiology because it helps optimize growth conditions, maximize photosynthetic efficiency, and evaluate the overall health and productivity of plants.


  • Large LCD display with data logging function
  • HOLD Function
  • The sensor has a ¼" screw mount for the tripod and selfie stick and tripod compatibility
  • Mode Selection - CALI (calibration)/ LOG (data logging)/ RCFS (restore factory setting)


  • PPFD Measurement
    • Repeatability: ±1 μmol/m²/sec
    • Measurement Range: 0-3999 μmol/m²/sec
    • Display Resolution: 0.1 μmol/m2/sec (0-999); 1 μmol/m²/sec (1000-3999)
    • Cut-On Wavelength: 400 ±10nm
    • Cut-Off Wavelength: 700 ±10nm
    • Data logging function: record up to 100 groups of data
  • Power Requirements: 2 x AAA batteries
  • Operating Environment: 32°F to 122°F (0°C to 50°C); 0~95%, non-condensing
  • Storage Environment: -4°F to 140°F (-20°C to 60°C); ; 0~95%, non-condensing
  • Dimension:
    • Main Unit: 115 x 60 x 24mm
    • Sensor Unit: 80 x 45.6 x 26mm
  • Weight: approx. 115g (without batteries and cable

Set Includes:

  • 1 x Par Meter Main Unit
  • 1 x Par Meter Sensor Unit
  • 1 x 4.9ft Coiled Cable
  • 1 x 12ft Straight Cable
  • 2 x AAA batteries
  • English Instruction Manual
  • Standard Factory Packaging

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