Quantum Sensors

Apogee Instruments quantum sensors measure photosynthetic light levels in both air and water, combining accuracy and durability at a competitive price. The sensor heads feature a unique blue diffuser that reduces spectral error to less than 5 % for sunlight (direct, diffuse, under plant canopy, reflected from plant canopy) and common electric plant lights (fluorescent, metal halide, high pressure sodium), and less than 10% for LEDs (blue, green, red, cool white, neutral white, and warm white).

The sensor has following special features

  • Next generation sensor head design
  • Excellent cosine response
  • Self-cleaning dome-shaped head
  • Potted solid for extreme conditions
  • Self-powered and amplified models
  • Installed in growth chambers from industry leaders Convirion, Biochambers, Environmental Growth Chambers, and Percival Scientific
  • Also available in multi-sensor “line quantum” models for spatially-averaged measurements
  • Fully submersible
  • Easily integrates with data-loggers
  • Four year warranty


SQ-110, -120

SQ-112, -122

SQ-215, -225

SQ-311, -313, -316, -321, -323, -326

Specification :

Spectral Range: 410 nm to 655 nm Measurement Repeatability: Response Time: ms Field of View: 180o

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