Apogee Instruments MQ-510 Full-Spectrum Quantum PAR Meter, for Underwater/Reef Tank Precision Light Measurement - All Light Sources Including LEDs
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 3 left in stock, order soon!
Arrives
Sunday, Apr 19
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Style: MQ-510
Features
- DR BRUCE BUGBEE: Apogee PAR meters have been designed and refined by Dr. Bruce Bugbee, a world-famous crop physiologist.
- UNDERWATER ACCURACY: The MQ-510 ensures precise PAR measurements underwater by applying an immersion effect correction factor. It measures photons between 400 and 700 nm, providing a single PAR reading in mol m-2 s-1 with less than 5% uncertainty. Its stable calibration boasts an accuracy drift rate of under 2% per year, unlike hobby-grade meters.
- FEATURES: The rugged detector measures photosynthetic photons from 400-700 nm from any light source by taking instantaneous or logged measurements; immersion correction-factor calibrated in for accurate UNDERWATER par-measuring.
- RUGGED DESIGN: The sensor head is made of machined aluminum and fully potted, making it waterproof and rugged. The tangle-free cable facilitates measurements over a large plant canopy, while still allowing the user to view the high-contract display screen. NOTE: Handheld-meter display is NOT waterproof
- MANUFACTURED IN THE USA: All meters are backed by our four-year warranty and supported by our US-based customer support team.
Package Dimensions: 14.72 x 9.57 x 2.32 inches
Item Weight: 6.4 ounces
Manufacturer: Apogee Instruments
Batteries: 1 Lithium Metal batteries required. (included)
Date First Available: January 1, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Apr 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Apogee Instruments MQ-650: Underwater Fu...
Received a brand new unit. Clean and well packaged. Clear instructions included with a nice neoprene case. I have seen other reviews which mention receiving used meters. This seems to be have been addressed and corrected. I noticed one other review claiming two par meters give different results and complaining of accuracy. That customer clearly didn't understand they purchased a unit to be used in a greenhouse and compared it to one that calculates par UNDER WATER. Two different meters with different functions and sensors that pick up different spectrum.
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Reviewed in the United States on March 13, 2026 by Greenthumbscaper
Style: MQ-510
Sent me a used item. As soon as I opened it immediately noticed scratches on the sensor and then saw corrosion everywhere including the screws. Very Unsat to spend over $600 on an item to find it was already used.
Reviewed in the United States on October 15, 2025 by Mark Garcia
Style: MQ-510
I bought a cheaper VBR version of a PAR meter on here and didn’t know that it didn’t measure the blue lighting in my tank. I spent several hundred dollars on corals thinking I had a PAR reading. I went to my LFS and asked them and they asked where did you get your par meter and I said Amazon and it’s a VBR meter. Sure as dog doo doo they said it isn’t measuring the blue lighting. Purchased this PAR meter and everything in my tank is booming. Sometimes trying to save a buck isn’t the best option in some cases.
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Reviewed in the United States on June 3, 2024 by Michael F.
Works great and its amazing to know exactly what the par levels in your tank are. Only issue is how crazy expensive it was but I guess it is fairly advanced technology.
Reviewed in the United States on July 30, 2025 by fishguy
Style: Apogee Instruments MQ-650: Underwater Fu...
Does what supposed to do
Reviewed in the United States on January 9, 2025 by Carlos Loureiro
Style: MQ-510
I spent over $560 on this par meter only to get a package that was already opened and used. No instructions or no paper work to show the product. Or how to use it. The par meter was dirty and the battery didn't work. I had to replace the battery with the one that was in it because it was crusty like it was dropped in saltwater.
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Reviewed in the United States on August 25, 2022 by RArv
Expensive for what you can get close enough using iPhone and Photone
Reviewed in the United States on September 28, 2022 by Zero Drift
I’m not trying to spend $600 to be sent a used item! These are great par meters. I know because I paid my LFS to come out and take readings before I purchased. That said, I’m not happy with receiving a used item with everything opened and salt creep on the mounting screws and wand!
Reviewed in the United States on August 25, 2022 by Matt W.