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Description
Quantum PAR Meter, Waterdichte PAR Meter voor Rif Tank Aquarium Planten IP68 Quantum Sensor Full-Spectrum PPFD Meter Data Logger, 79“ Kabel en 37” Stevige Telescopische Pool inbegrepenKwantum PAR meter: Een lichtgewicht en draagbare handheld PAR meter meet nauwkeurig fotosynthetisch actieve straling (PAR) in het cruciale bereik van 400 700 nm, belangrijk voor het beoordelen van de lichtkwaliteit en de impact ervan op fotosynthese Hoge precisie: DANOPLUS PAR meter voor rifaquaria meet van 0~4000 mol m sec, met een cut on golflengte van 400 nm ( 10 +10 nm) en een cut off golflengte van 700 nm ( 10 +10 nm), wat zorgt voor nauwkeurige
- 【Kwantum PAR-meter】: Een lichtgewicht en draagbare handheld PAR-meter meet nauwkeurig fotosynthetisch actieve straling (PAR) in het cruciale bereik van 400-700 nm, belangrijk voor het beoordelen van de lichtkwaliteit en de impact ervan op fotosynthese
- 【Hoge precisie】: DANOPLUS PAR-meter voor rifaquaria meet van 0~4000 μmol/m²/sec, met een cut-on golflengte van 400 nm (-10/+10 nm) en een cut-off golflengte van 700 nm (-10/+10 nm), wat zorgt voor nauwkeurige resultaten en optimale plantengroei in de juiste omgeving met voldoende licht
- 【Waterdichte IP68-sensor】: De Quantum PAR-meter is voorzien van een IP68 waterdichte sensor en wordt geleverd met een 37" stevige telescopische paal (meegeleverd), wat nauwkeurige metingen van onderwaterfotosynthese in verschillende complexe omgevingen mogelijk maakt
- 【Geregistreerde gegevens】: Met zijn dataloggingfunctie meet deze PAR meter kan tot 100 meetwaarden opslaan, waardoor het eenvoudig is om historische gegevens te volgen en te controleren, wat handig is voor het bewaken en aanpassen van lichtenergieniveaus om snel weloverwogen beslissingen te nemen
- 【Multifunctioneel】: Inclusief nulpuntkalibratie, data hold, datalogging (100 waarden), MAX/MIN/AVG, indicator voor lage batterij, resetten naar fabrieksinstellingen. De ppfd-meter meet ook de fotosynthetische fotonenfluxdichtheid (PPFD) met hoge nauwkeurigheid, en levert essentiële gegevens voor het optimaliseren van plantengroei en blootstelling aan licht in tuinbouwtoepassingen
Waterdichte Quantum PAR-meter
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
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4.5 ★★★★★
Based on 1439 reviews
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Product Reviews
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Super cute, comfortable, practical, love that they are slip on
Size: 10.5, Color: Tobacco/Black
I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days.
Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Worth it.
Size: 8.5, Color: Crushed Clay/Gum 2
Love all my Sorels. These were really cute, good color, comfortable, warm, fit well, good quality and sturdy. I would order again.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Fantastic Boots!
Size: 8.5, Color: Redwood/Gum 10
Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!
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Reviewed in the United States on April 11, 2026