SKU: 65415446418
light meter for growing plants

light meter for growing plants PAR-355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic Activity

Sale price$23.32 Regular price$25.91
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

light meter for growing plants PAR-355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic ActivityPAR meter is a must have tool for all growers it measures Photo Synthetically Active Radiation (PAR) flux in wavelengths ranging from 400 to 700nm. There is a proportional relationship between the band and the number of photons absorbed in the 400 to 700nm band and the rate of photosynthesis in plants, which is important for horticulture studies and monitoring plant physiology. Features: Compact design, easy to use every day Large screen display User

PAR meter is a must-have tool for all growers it measures Photo Synthetically Active Radiation (PAR) flux in wavelengths ranging from 400 to 700nm. There is a proportional relationship between the band and the number of photons absorbed in the 400 to 700nm band and the rate of photosynthesis in plants, which is important for horticulture studies and monitoring plant physiology.

Features:

  • Compact design, easy to use every day
  • Large screen display
  • User-friendly, easy to operate
  • Record up to 100 measured values
  • For real-time display, it shows the last four recorded data
  • Hold function
  • MAX / MIN / AVG Data
  • With tripod socket
  • Low battery indicator
  • Auto turn off function after 3min of no usage
  • Simple calibration function

    Specifications:

    • PPFD (Photosynthetic Photon Flux Density) Measurement
      • Range: 0~5000 μmol/m²/sec
      • Repeatability: ±1 μmol/m²/sec
      • Display Resolution: 0.01 μmol/m²/sec (0~99.99); 0.1 μmol/m²/sec (100~999); 1 μmol/m²/sec (1000~5000)
      • Measuring rate: 1 measurement per second
      • Cut-On Wavelength: 400±10nm
      • Cut-off Wavelength: 700±10nm
    • Power Requirements: 2 x 1.5V AAA alkaline battery
    • Dimension: 115 x 60 x 24mm
    • Weight: approx. 115gms (without batteries)

    Set Includes: 

    • 1 x PAR Meter
    • 2 x AAA batteries
    • English User Manual
    • Standard factory packaging
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 65415446418

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    Beatriz Cabrera Portuondo
    San Leandro, US
    ★★★★★ 5
    Comfort and Quality
    Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
    These pillows are very comfortable. They hold their shape well throughout the night and have greatly improved my sleep. Plus, the quality of the materials is excellent. Highly recommended!
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    Reviewed in the United States on June 2, 2026
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    D. Stec
    Houston, US
    ★★★★★ 1
    Terrible pillows
    Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
    These pillows might be fine if you need them for a decorative sham, but definitely NOT to sleep on. They are super lumpy and soft, days after taking them out of package. It seems like there are just bunches of cotton strips in a row that are hard to fluff. They are also dark in some areas, so it looks like the pillow is stained, when in fact it's whatever material the stuffing is. I can't return them because they won't fit back in the box. Super disappointing.
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    Reviewed in the United States on March 8, 2026
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    Lianay Reyes
    Belleville, US
    ★★★★★ 5
    Comfortable from the first night
    Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
    I found them comfortable and with good support for the head and neck. They are wide in size and feel soft when lying down. After several days of use they continue to retain their shape without problem.
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    Reviewed in the United States on June 6, 2026
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    Tom Armstrong
    Charlottesville, US
    ★★★★★ 4
    Not as Firm as I had hoped
    Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
    A good pillow. However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated. I'll have to go for firmer for my next purchase.
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    Reviewed in the United States on July 28, 2025
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    Computerized Nurse
    Lexington, US
    ★★★★★ 5
    I admit when I was wrong.
    Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
    3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle. OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed. ================================================== Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better. Will post the results in a day or two.
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    Reviewed in the United States on March 24, 2026

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