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.
Cosine Response
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.
Rugged Design
Head is potted-solid making it submersible and suitable for use in all climate conditions
Reliable Accuracy
To ensure accuracy each sensor is carefully calibrated in controlled conditions and traceable to NIST reference standards
Warranty and Support
All Apogee products are backed by an industry-leading four year warranty and outstanding customer support.
Where is the MQ-500 used?
The MQ-500 is used to measure incoming PPFD measurements in outdoor environments, greenhouses, growth chambers, and aquariums.
Specifications
Calibration Uncertainty: ± 5 %
Measurement Range: 0 to 4000 µmol m-2 s-1
Measurement Repeatability: less than 0.5 %
Long-term Drift: less than 2 % per year
Non-linearity: less than 1 % (up to 4000 µmol m-2 s-1)
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 % C-1
Uncertainty in Daily Total: less than 5 %
Detector: blue-enhanced 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 relativity humidity from 30 to 50 C; separate sensors can be submerged in water up to depths 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; additional cable available; santoprene rubber jacket
Warranty: 4 years against defects in materials and workmanship
Shipping
How is my order shipped and what does it cost?
Orders are shipped either by Courier [currently FedEX Ground] or Postal Service --- the choice is yours!
For delivery by Courier, you pay the actual charges based on a 1 kG package [2.2 lbs] shipped via ground service, plus a nominal $1.00 service charge to cover the cost of insurance and packing materials. We pay any additional charges.
For Postal Service (your best value), shipping on orders under $100.00 is $13.95 to most locations in Canada, exceptions noted below. For orders between $100.00 and $150.00 the rate is $9.95, for orders between $150.00 and $200.00 the rate is just $4.95 and for orders over $200.00 shipping is FREE. The more you order the more you save! The delivery standard for this service is between 1 to 7 business days between all major centers.
NOTE: Additional Shipping Charges apply to orders being shipped to the NWT, YK, NU and some rural or remote locations in Canada as well as on over sized or heavy items indicated by the the - Additional Shipping symbol.
When will my order be shipped?
On weekdays, in-stock merchandise is shipped the same day if received by 2:00 pm EST. Orders received after that, or on weekends or holidays, are shipped the next business day.
Do you ship to the US or to other International destinations?
Currently we are only shipping within Canada.
Returns
What if I want to return an item?
Should you find it necessary to return an item, please call us first. All returns should be properly packaged to avoid damage and should include all original boxes and paperwork to receive a refund, replacement or credit. Shipping fees are not refundable, unless, of course, you are returning defective merchandise or merchandise we sent in error.
What do I do if a product breaks or doesn't preform as promised?
Keep all warranties and owner's manuals you receive with your merchandise. In the event an item becomes defective or just doesn't live up to your expectations, please refer to the warranty information you received for proper handling procedures.
