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Description
ppfd for indoor plants PAR-414 Full-Spectrum Quantum PAR Meter Waterproof Sensor IP68 for Aquarium Reef Tank Plants PPFD Tester Indoor Plants, Garden, Farm, Hydroponics Photosynthetic ActivityThis Full Spectrum Quantum meter device is equipped with a waterproof sensor. It is used to gauge the flux of Photo Synthetically Active Radiation (PAR) within the wavelength range of 400 to 700 nanometers (nm). PAR indicates the crucial spectrum of light essential for initiating photosynthesis in plants. Plants harbor pigments known as chlorophylls, which capture photons falling within a particular range of wavelengths. These photons serve as the
This Full Spectrum Quantum meter device is equipped with a waterproof sensor. It is used to gauge the flux of Photo Synthetically Active Radiation (PAR) within the wavelength range of 400 to 700 nanometers (nm). PAR indicates the crucial spectrum of light essential for initiating photosynthesis in plants.
Plants harbor pigments known as chlorophylls, which capture photons falling within a particular range of wavelengths. These photons serve as the requisite energy source for photosynthesis, the process through which plants convert light energy into chemical energy, thereby fueling their growth and development.
Utilizing a Quantum Meter to measure PAR flux allows researchers and horticulturalists to evaluate the intensity of light conducive to photosynthesis. This data is important in horticultural research and the monitoring of plant physiology, as it enables the optimization of growth conditions, the maximization of photosynthetic efficiency, and the assessment of overall plant health and productivity.
Features:
- IP68 Waterproof sensor
- Large LCD display with data logging function
- HOLD Function
- The sensor has a ¼" screw mount for the tripod and selfie stick and tripod compatibility
- Mode Selection - CALI (calibration)/ LOG (data logging)/ RCFS (restore factory setting)
Specifications:
-
PPFD Measurement
- Repeatability: ±1 μmol/m²/sec
- Measurement Range: 0~4000 μmol/m²/sec
- Display Resolution: 0.1 μmol/m2/sec (0~999); 1 μmol/m²/sec (1000~4000)
- Cut-On Wavelength: 400 ±10nm
- Cut-Off Wavelength: 700 ±10nm
- Data logging function: record up to 100 groups of data
- Waterproof Level: IP68
- Power Requirements: 2 x AAA batteries
- Operating Environment: 32°F to 122°F (0°C to 50°C); 0~95%, non-condensing
- Storage Environment: -4°F to 140°F (-20°C to 60°C); ; 0~95%, non-condensing
- Dimension:
- Main Unit: 115 x 60 x 24mm
- Sensor Unit: 30 x 40mm
- Weight: approx. 173g (without batteries and extension rod)
Set Includes:
- 1 x Par Meter Main Unit
- 1 x Par Meter Sensor with 1/4" Screw mount
- 1 x 79'' Cable
- 1 x Extension Rod with 1/4" Screw
- 2 x AAA batteries
- English Instruction Manual
- Standard Factory Packaging
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Great factual content
Format: Hardcover
Awesome book for kids. My 8 year old grandson loves it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2021
★★★★★ 5
An essential book on U.S. race and capitalism!
Format: Paperback
One of the most important books on race and capitalism ever written. Such a nuanced study of the California penal system that includes the racist structure of the United States’ criminal justice system, but goes far beyond to analyze how capitalism and profit drive politicians, police, investors, landowners, and working class people—white and Black—to expand the prison system in an age of dropping crime rates. I teach it regularly to undergraduates and graduate students, and it drives fascinating discussions.
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Reviewed in the United States on March 8, 2025
★★★★★ 5
Gilmore does a great job of discussing and parceling out the very complex ...
Format: Paperback
If anyone has mastered the political economy and geography of prisons in California, it is Ruth Wilson Gilmore in Golden Gulag. Gilmore does a great job of discussing and parceling out the very complex and complicated relationships that exist between capitalism as a system that produces our material world alongside economic crises, and the function of prisons to absorb, manage, relocate and "hide" those very crises in the era of neoliberalism. She also skillfully reminds us over and over that it is black and brown working-class poor communities that bear the brunt of this kind of system that also expresses it's power via white supremacy. I am finding this book very useful and chock-full of interesting information for my current research.
People may find the book a difficult read because it loaded with information and technicalities they are unfamiliar with, but these are good reasons to struggle with a text and truly grasp the increasingly intricate processes that determine and guide the world we live in (and the places we may end up locked in!). As Marx said, there is no royal road to science and knowledge.
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Reviewed in the United States on June 11, 2017
★★★★★ 5
I'm still reading it but its a great book. It makes me think about how much ...
Format: Paperback
I'm still reading it but its a great book. It makes me think about how much money is invested in keeping poor and people of color populations in prison. The prison industrial complex is no joke. This book provides the studies, chart and details of what I always thought. There's plenty of money to be made keeping the 'right people in prison' and finding new victims such as immigrants and school kids.
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Reviewed in the United States on June 14, 2015
★★★★★ 4
This was a good expose on how our government secures monies without you ...
Format: Paperback
This was a good expose on how our government secures monies without you being aware of it for use in their useless game of punishment and the ultimate ruination of the towns in which they place these freaking Hell-holes
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Reviewed in the United States on November 9, 2017