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MQ-610: 400-750 nm ePAR Meter – TotalGrowLight
Apogee MQ-510
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Amazon.com: Apogee Instruments MQ-510 Underwater Full-Spectrum Quantum PAR Meter - Digital Light Meter for Aquarium Lighting & Aquarium Plant Care : Pet Supplies
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Apogee MQ-501: Handheld Full-spectrum Quantum Meter – Hort Americas
Apogee MQ-510 Full Spectrum Underwater Quantum Meter Rental
Apogee MQ-510: Full-Spectrum Underwater Quantum Meter – Hort Americas
Apogee Instruments MO-200 Oxygen Sensor with Handheld Meter | Forestry Suppliers, Inc.
Amazon.com: Apogee Instruments MQ-500 Full-Spectrum Quantum PAR Meter - Digital PPFD Meter for Indoor Grow Lights, Sunlight & Plant Monitoring : Patio, Lawn & Garden
PQ-510 microCache Bluetooth LED PAR Meter Kit - Bulk Reef Supply
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Apogee MQ510 Is The First Truly Underwater PAR Meter For Hobbyists | Reef Builders | The Reef and Saltwater Aquarium Blog
MQ-200 Quantum PAR Meter With Separate Sensor - Apogee
Amazon.com: Apogee Instruments MQ-610: 400-750 nm ePAR Meter - Meter for Extended Range LED Greenhouse Grow Lights, Sunlight, and Plant Care : Patio, Lawn & Garden
Apogee PQ 500: Precision PAR Meter & Logger for Your Plants
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Apogee MQ-500 Quantum Meter Sensor with Extending Wand Kit & Protective Case | eBay
EXTENDED RANGE PFD METER (340-1040 nm) - Year-Round Garden | Grower's Supply Center