Apogee MQ-500: Full-Spectrum Quantum Meter - Chilled Tech - LED Grow Lights & Spectrum Control
Sun System PAR Meter with Remote Sensor, Use Indoors or Outdoors - Walmart.com
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
Amazon.com: Apogee Instruments MQ-510 Underwater Full-Spectrum Quantum PAR Meter - Digital Light Meter for Aquarium Lighting & Aquarium Plant Care : Pet Supplies
Amazon.com: Apogee Instruments MQ-500 Full-Spectrum Quantum PAR Meter - Digital PPFD Meter for Indoor Grow Lights, Sunlight & Plant Monitoring : Patio, Lawn & Garden
Apogee MQ-510 PAR Meter + Wand
MQ-301X: Line Quantum with 10 Sensors and Handheld Meter - Apogee Instruments, Inc.
Apogee PQ 500: Precision PAR Meter & Logger for Your Plants
Apogee MQ510 Is The First Truly Underwater PAR Meter For Hobbyists | Reef Builders | The Reef and Saltwater Aquarium Blog
MQ-650 ePAR Underwater Meter | Apogee Instruments
Apogee MQ-500 Quantum Meter Sensor with Extending Wand Kit & Protective Case | eBay