Refined Spectral Response
The improved spectral response of the MQ-500 increases the accuracy of LED measurements making it ideal for use with both natural and electric light sources.
This cosine-corrected sensor is designed to maintain its accuracy when radiation comes from low zeith angles. The sensors measure PPFD with a cosine response accurate within ± 5% at 75° zenith angle.
Head is potted solid making it submersible and suitable for use in all climate conditions.
Warranty and Support
All Apogee products are backed by an industry-leading four-year warranty and outstanding customer support.
Calibration Uncertainty: ± 5 %
Measurement Range: 0 to 4000 µmol mˉ² sˉ¹
Measurement Repeatability: Less than 0.5 %
Long-term Drift (Non-stability): Less than 2 % per year
Non-linearity: Less than 1 % (up to 4000 µmol mˉ² sˉ¹)
Response Time: Less than 1 ms
Field of View: 180 ˚
Spectral Range: 389 to 692 nm ± 5 nm (wavelengths where response is greater than 50 % of maximum)
Spectral Selectivity: Less than 10 % from 412 to 682 nm ± 5 nm
Directional (Cosine) Response: ± 5 % at 75 ˚ zenith angle
Azimuth Error: Less than 0.5 %
Tilt Error: Less than 0.5 %
Temperature Response: -0.11 ± 0.03 % Cˉ¹
Uncertainty in Daily Total: Less than 5 %
Detector: Blue-enhance silicon photodiode
Housing: Anodized aluminum body with acrylic diffuser
IP Rating: IP68
Operating Environment: 0 to 50 C, less than 90 % non-condensing relative humidity up to 30 C, less than 70 % non-condensing relative humidity from 30 to 50 C, separate sensors can be submerged in water up to depth of 30 m
Meter Dimensions: 126 mm length, 70 mm width, 24 mm height
Sensor Dimensions: 24 mm diameter, 37 mm height
Mass: 100 g (with 5 m of lead wire)
Cable: 2 m of shielded, twisted-pair wire with santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions), additional cable available
Warranty: 4 years against defects in materials and workmanship
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Nearly all of our products can be shipped internationally using DHL or similar couriers.
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5) Hassle-Free Returns
And just in case your purchase was not up to your standards, we offer return if you are not 100% satisfied for any reason.
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