Apogee quantum sensors measure photosynthetically active radiation. The MQ-100 has a sensor integrated into the top of the housing while the handheld meter displays and stores measurements. Photosynthetically active radiation (PAR), or photosynthetic photon flux (PPF), is the wavelength range from 400 to 700 nanometers and is strongly correlated with plant growth. Gardeners, greenhouse managers, growth chamber users and salt-water aquarists measure PAR to insure optimal specimen health.
Specifications
Calibration Uncertainty: ± 5 %
Measurement Repeatability: < 1 %
Non-stability (Long-term Drift): < 2 % per year
Non-linearity: < 1 % (up to 3000 µmol m-2 s-1 )
Response Time: < 1 ms
Field of View: 180°
Spectral Range: 410 nm to 655 nm (wavelengths where response is greater than 50 % of maximum)
Directional (Cosine) Response: 0.06 ± 0.06 % per C
Temperature Response: ± 5 % at 75° zenith angle
Operating Environment: 0 to 50 C, < 90 % non-condensing relative humidity up to 30 C, < 70 % non-condensing relative humidity from 30 to 50 C, Separate sensors can be submerged in water up to depths of 30 m
Meter Dimensions: 12.6 cm length, 7.0 cm width, 2.4 cm height
