SKU: 11350516184
light meter for growing plants

light meter for growing plants SpotOn® Quantum PAR Light Meter

Sale price$20.66 Regular price$22.96
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3

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Description

light meter for growing plants SpotOn® Quantum PAR Light MeterAn affordable meter that provides scientifically accurate Photosynthetic Active Radiation (PAR) light readings under any light source including LED! Provides accurate PAR light readings from ANY light source: Full sun to full shade indoors or outdoors. Artificial light sources (LED, High Pressure Sodium, Metal Halide, Florescent, Halogen) Three modes of operation: Instant Spot Measurement mode for PAR light readings. Scan mode for quickly averaging

An affordable meter that provides scientifically accurate Photosynthetic Active Radiation (PAR) light readings under any light source including LED!


Provides accurate PAR light readings from ANY light source:

– Full sun to full shade indoors or outdoors.
– Artificial light sources (LED, High Pressure Sodium, Metal Halide,
Florescent, Halogen…)

Three modes of operation:

– Instant Spot Measurement mode for PAR light readings.
– Scan mode for quickly averaging PAR over an area.
– DLI mode shows Daily Light Integral on the LCD (no computer needed).

Compact and easy to use.

Water and impact resistant.

Integral mounting plate for: stand, stake, lanyard & hanger hole, and magnet mounts.

1/4-20 threaded hole for mounting on camera tripods and stands.

Includes a sensor cover and soft carrying case.

OPTIONAL: Add on extension wand allowing you to reach deep into or across the canopy!

Range: PAR LIGHT:
0.0 to 6,500 μmol m-2 s-1

 

DLI (Daily Light Integral):
0.0 to 560.0 moles m-2 day-1

Display Resolution: PAR Light:
0.1 μmol m-2 s-1 from 0.0 to 99.9
1 μmol m-2 s-1 from 100 to 6,500

 

DLI:
0.1 moles m-2 day-1

Accuracy: +/- 5% (each meter is calibrated to a NIST traceable light sensor on a broad-spectrum light source)
Azimuth Error: +/- 1% over 360°
Daily Light Integral (DLI): Calculated continuously from light readings every 3 minutes
Water Resistant: IP-65 rated for use in rain, irrigation, and condensing environments (do not submerge)
Operating Environment: 32-130°F(0-55°C) with 0-100% RH condensing ok
Battery: CR2032 3v coin cell lithium included (2-year battery life)
Size & Weight: 1.75in(4.5cm)W x 5.75in(14.6cm)L x .85in(1.8cm)D
0.17lb(77g)
Response Data: Spectral Response

 

Cosine Response



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: 11350516184

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4.5 ★★★★★
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Verified Purchase
KNE
Carnegie, US
★★★★★ 5
comfortable
Size: 7 Big Kid, Color: Black/Black
super comfortable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
M
Verified Purchase
Mike Summers
Alexandria, US
★★★★★ 5
Great shoes
Size: 5 Big Kid, Color: Navy/Blue
Loved them but bought a size too small so had to buy another pair…my bad 🤦🏽‍♀️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
T
The Pacific Northwesterners
Los Angeles, US
★★★★★ 4
Comfortable and Easy to Wear Daily
Size: 2 Little Kid, Color: Navy/Blue
My daughter has been wearing these navy/blue shoes since the weather has been less rainy and more sunny. They are great for outdoor play, especially on days when it's warm outside. The knit mesh upper keeps her feet from overheating, and the cushioned insole feels supportive without being stiff. At size 2, the fit is accurate and the width runs a bit roomy, which gave her some growing room without feeling loose. The slip-on design with elastic laces and pull tabs is a real plus. She can get them on and off without any help, which she loves. The shoes are light enough that she barely notices them during long active days. My one small complaint is that the sole feels more like firm foam than rubber, so they can be a little slippery on smooth indoor floors. For the price, these deliver solid everyday value. They look good, hold up well to regular use, and my daughter reaches for them first most mornings. Pros: - Breathable mesh keeps feet cool - Easy slip-on design with elastic laces and pull tabs - Lightweight and comfortable for all-day wear - Accurate sizing with a roomy width - Durable for the price Cons: - Sole can be slippery on hard smooth surfaces - Limited outsole grip compared to rubber-soled shoes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
D
DR
Battle Creek, US
★★★★★ 5
Great kids' shoe — easy on, comfy all day
Size: 3 Little Kid, Color: Pink/Lavender
My kid has been wearing these for a few weeks now and I'm genuinely impressed with how well they've held up. The knit mesh upper keeps feet cool and comfortable during long days at school and outdoor play, and the cushioned EVA midsole does a great job absorbing impact. What really won me over is the slip-on design with elasticated laces and dual pull tabs — my child can put them on and take them off completely independently, which is a huge win. The fit is snug but not tight, and they run a bit roomy in width, which is great for kids with wider feet or those who need a little growing room. At $32, the quality feels solid for the price. Lightweight, breathable, and easy to wear — these check all the boxes for an everyday kids' shoe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
M
Melissa
Waukegan, US
★★★★★ 5
Cute, Comfortable, Light-Weight Shoes, Perfect for School
Size: 11 Little Kid, Color: Pink/Lavender, Size: 11 Little Kid, Color: Pink/Lavender
These have turned out to be great everyday shoes for my 5 year old. She normally wears a size 10, but since that size wasn’t available, I ordered the 11 expecting her to grow into them. I was pleasantly surprised that they already fit her pretty well. There’s still a little extra room in the toe area, but the shoes fit securely around her ankles so they don’t feel loose or slip off while walking or playing. She says they’re very comfortable and loves how easy they are to slip on by herself. The lightweight design is nice for everyday wear, and they’ve held up well so far despite being worn almost daily. They've become her favorite shoes to wear! Also the pink/lavender color is really pretty in person. Overall, I’m very happy with them and would order again.
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Reviewed in the United States on May 13, 2026

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