Line Quantum With 6 Sensors And Handheld Meter

Apogee line quantum sensors measure a spatial average of photosynthetically active radiation. The MQ-306 has a separate sensor bar with 6 sensors while the handheld meter displays and stores measurements. The sensor housing design features an integrated bubble level and is fully potted making the sensor weatherproof. 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 umol m-2 s-1 )
Response Time: < 1 ms
Field of View: 180 degrees
Spectral Range: 410 nm to 655 nm (wavelengths where response is greater than 50 % of maximum)
Directional (Cosine) Response: +/- 5 % at 75 degrees zenith angle
Temperature Response: 0.06 +/- 0.06 % per C
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
Sensor Dimensions: 50 cm length, 1.5 cm width, 1.5 cm height
Mass: 300 g
Cable: 2 m of shielded, twisted-pair wire. Santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions)
Warranty: 4 years