SpotOn Quantum PAR Meter | Professional Grow Light Tester with DLI Mode & High Accuracy | Durable, IP-65 Rated for Indoor, Outdoor, Greenhouse & Aquarium Use | PAR Light Meter for Plants
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SpotOn Quantum PAR Meter | Professional Grow Light Tester with DLI Mode & High Accuracy | Durable, IP-65 Rated for Indoor, Outdoor, Greenhouse & Aquarium Use | PAR Light Meter for Plants

4.3/5
Product ID: 391463005
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Details

  • Brand
    FGI
  • Item dimensions L x W x H
    2.75 x 0.8 x
  • Material
    Shock 3/4" LCD
  • Item Weight
    77 Grams
  • Lower Temperature Rating
    32 Degrees
🌞Measures up to 6500 μmol/m²/sec
🎯±5% NIST-traceable accuracy
đź’§IP-65 water & dust resistant

Description

🌿 Measure Light Like a Pro, Grow Like a Legend

  • MULTI MODE MASTERY - Switch effortlessly between Spot, Scan, and DLI modes to optimize light exposure and maximize photosynthesis like a pro.
  • HIGH INTENSITY READY - Handles extreme light levels up to 6500 ÎĽmol/m²/sec, perfect for cutting-edge LED grow lights and commercial setups.
  • PLUG PLAY VERSATILITY - Comes with a protective case, sensor cover, and universal mounts (tripod, stake, magnet) for seamless, on-the-go deployment.
  • BUILT FOR ANY ENVIRONMENT - IP-65 rated durability means this meter thrives in humid greenhouses, outdoor gardens, and even aquariums—rain or shine.
  • PRECISION THAT POWERS GROWTH - NIST-traceable calibration ensures ultra-accurate PAR and light intensity readings within ±5%, so your plants get exactly what they need.

The SpotOn Quantum PAR Meter is a professional-grade light meter engineered with NIST-traceable calibration for ±5% accuracy. It features Spot, Scan, and Daily Light Integral (DLI) modes to optimize plant growth by precisely measuring photosynthetically active radiation up to 6500 μmol/m²/sec. Its IP-65 rated rugged design ensures reliable use in wet, humid, and outdoor environments. The meter includes a full accessory kit with versatile mounting options, making it ideal for greenhouses, aquariums, and advanced horticulture setups.

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Reviews

4.3

All from verified purchases

C**

Simple and accurate

So small and accurate love this tool

H**.

A+

Great meter for the price!

S**Z

Worked like a charm.

Works great. Should have come with the extension.

T**R

Simple and Solid

This is a nice little tool. Built solid, looks pro. Comes with a nice little padded case. One button press simplicity. No BS a true Quantum Meter, works beautifully with my LEDs.

Z**K

Best bang for your buck par meter.

Perfect little par meter. Works great.

M**N

Great product

Really helped with indoor garden.

J**Y

Outstanding Quantum Par Meter! Love the DLI function!

Great meter that's accurate and easy to use. The Scan and DLI functions are great!

Y**.

Didn't work for me after multiple attempts

This is a super expensive light meter that I was encouraged to buy for an indoor plant class. Not only was it not worth the high price, but I still can't get it to read DLI after referring to the manual, the YouTube video, and asking my professor for help. It has TWO BUTTONS. It should NOT BE HARD TO USE. I contacted the manufacturer who just resent me the manual I already can download from Amazon. I do not recommend this and will attempting to return (I threw away the box) or give to a classmate. A huge waste of money and effort.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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ÂŁ313.40

Duties & taxes incl.

UKstore
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30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Spoton Quantum Par Meter Professional Grow Light Tester With Dli | Desertcart GB