SQ-316 6-in-Line Quantum Sensors


Apogee Instruments


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The Sensor measures: PAR Light
Output Signal: mV
Cable Length: 5 meters
Power Supply: Does not require
Sensor for use in: Outdoor & Underwater

Apogee line quantum sensors measure a spatial average of photosynthetically active radiation. The SQ-316 has a sensor bar with six sensors and is calibrated for use in sunlight. 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.

Power Supply: Self powered
Sensitivity: 2.0 mV per µmol m-2 s-1
Calibration Factor: 0.5 µmol m-2 s-1 per mV (reciprocal of sensitivity)
Calibration Uncertainty: ± 5%
Measurement Repeatability: < 1%
Non-stability (Long-term Drift): < 2 % per year
Non-linearity: < 1 % (up to 2500 µmol m-2 s-1; maximum PPF measurement is 2500 µmol m-2 s-1)
Response Time: < 1 ms
Field of View: 180°
Spectral Range: 410 nm to 655 nm
Directional (Cosine) Response: ± 5 % at 75° zenith angle
Temperature Response: 0.06 ± 0.06 % per C
Operating Environment: -40 to 70 C, 0 to 100 % relative humidity, Can be submerged in water up to depths of 30 m
Dimensions: 50 cm length, 1.5 cm width, 1.5 cm height
Mass: 275 g (with 5 m of lead wire)
Cable: 5 m of shielded, twisted-pair wire. Santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions). Pigtail lead wires
Warranty: 4 years

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