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Description
Hanna Instruments checker-fotometer voor fosfaatHanna Instruments checker fotometer voor fosfaat Als je de fosfaatwaarde in zoet of zout zwembadwater nauwkeurig wilt bepalen, dan is deze zakformaat fotometer jouw meest betrouwbare metgezel. Teststrips zijn verleden tijd, want je meet hiermee digitaal, snel en veel preciezer, volledig volgens de erkende ascorbinezuur methode. Door het vederlichte formaat neem je hem makkelijk mee naar je aquarium of vijver en lees je elke meting direct helder af.
Hanna Instruments checker-fotometer voor fosfaat
Als je de fosfaatwaarde in zoet of zout zwembadwater nauwkeurig wilt bepalen, dan is deze zakformaat fotometer jouw meest betrouwbare metgezel. Teststrips zijn verleden tijd, want je meet hiermee digitaal, snel en veel preciezer, volledig volgens de erkende ascorbinezuur methode. Door het vederlichte formaat neem je hem makkelijk mee naar je aquarium of vijver en lees je elke meting direct helder af. Met slechts één knop, nauwelijks onderhoud en automatische uitschakeling meet je zuinig, eenvoudig en zonder gedoe precies wat er in je water gebeurt.
Hoe werkt de Hanna Instruments checker voor fosfaat?
Binnen een aantal stappen weet je exact wat de fosfaat-waarde van het zwembadwater is. Na gebruik schakelt de checker uit, wanneer deze 10 minuten niet wordt gebruikt. Zo gaat de batterij nog langer mee.
- Druk op de knop. De meter gaat direct aan en is klaar voor gebruik;
- Vul het buisje met 10 ml zwembadwater en plaats deze in de checker;
- Druk opnieuw op de knop. De meter staat nu op nul (ZERO);
- Haal het buisje uit de meter en voeg een zakje reagens toe. Dit is de poeder die bij de checker zit;
- Plaats het buisje terug in de checker, sluit de deksel en houd de knop voor 3 seconden ingedrukt. De fosfaat-waarde verschijnt nu op het scherm.
Standaard meegeleverd
- Checker-fotometer
- 2 testbuisjes met dop
- Startkit reagens poeder
- 1 batterij
- Verpakt in een koffertje
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person.
You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support.
It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.)
I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night.
I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable.
I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing.
Would highly recommend.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
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Reviewed in the United States on May 22, 2026
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