MQ-301 Apogee Line Quantum with 10 Sensors and Handheld Meter

MQ-301

Apogee Instruments

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Line quantum meter MQ-301 with 10 PAR Radiation sensors in a 70 cm long bar (400-700 nm).
The bar includes a bubble level.

Apogee line quantum sensors measure a spatial average of photosynthetically active radiation. The MQ-301 has a separate sensor bar with 10 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.

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
Sensor Dimensions: 70 cm length, 1.5 cm width, 1.5 cm height
Mass: 380 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

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