SKU: 59968475884

Magnesium Checker HC ® für Meerwasser

$71.73 $79.70
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Magnesium Checker HC ® für MeerwasserDer Magnesium Checker HC fr Meerwasser ist ein Handkolorimeter, das die Magnesiumkonzentration kolorimetrisch bestimmt. Der Magnesium Checker wurde speziell fr die Messung in einem Meerwasseraquarium entwickelt und nutzt hierfr das Beer Lambert Prinzip zur kolorimetrischen Bestimmung der Magnesiumkonzentration. Der Bereich von 1000 bis 1800 ppm Magnesium eignet sich fr Riffaquarien, die mit Fischen oder mit Fischen und Korallen besetzt sind. Magnesium

Der Magnesium Checker® HC für Meerwasser ist ein Handkolorimeter, das die Magnesiumkonzentration kolorimetrisch bestimmt. Der Magnesium-Checker wurde speziell für die Messung in einem Meerwasseraquarium entwickelt und nutzt hierfür das Beer-Lambert-Prinzip zur kolorimetrischen Bestimmung der Magnesiumkonzentration. Der Bereich von 1000 bis 1800 ppm Magnesium eignet sich für Riffaquarien, die mit Fischen oder mit Fischen und Korallen besetzt sind. 

Magnesium ist das dritthäufigste Ion im Meerwasser, nur übertroffen von Natrium und Chlorid. Seine Häufigkeit ist entscheidend für die Bildung schwacher Ionenpaare mit Carbonationen. Dies ermöglicht die Verfügbarkeit von Kalzium- und Karbonationen für die Aufnahme durch Korallen und Wirbellose. Niedrige Magnesiumspiegel führen zu niedrigen oder instabilen Calcium- und Alkalinitätsspiegeln. Anzeichen eines niedrigen Magnesiumspiegels sind die Ausfällung von Calcium als unlösliches Calciumcarbonat und beeinträchtigtes Wachstum und Gesundheit der Bewohner.

Die Mini-Photometer CHECKER® HC bieten eine interessante Alternative zwischen einfachen chemischen Test-Kits und kompakten Messgeräten. Die handlichen Photometer verbinden Präzision mit einem erschwinglichen Preis und lassen sich durch ihr großes LCD und nur einem Knopf sehr leicht bedienen. Die automatische Abschaltfunktion sorgt für eine möglichst lange Batterielebensdauer.

Ideal für Aquarien und Meeresbiologie

Highlights:

  • leichtes (64 g) Gehäuse, handliche Größe
  • sehr einfache Bedienung über nur eine Taste
  • schnelle und präzise Messergebnisse
  • einfache Überprüfung mittels CAL-Check-Standards
  • großes, leicht ablesbares LCD
  • Abschaltautomatik
  • guter Preis

Lieferumfang: HI783 Checker HC wird mit Küvetten mit Deckel (2), Reagenzien-Starter-Set für die Messung von Magnesium in Meerwasser (25 Tests), graduierte 1-ml-Spritze und Spitze (1 Stk.), 5-ml-Spritze mit Spitze, schwarze Bedruckung (1 Stk.), 5-ml-Spritze mit Spitze, blaue Bedruckung (1 Stk.), Batterie und Bedienungsanleitung geliefert.

Technische Daten:

Messbereich: 1000 bis 1800 ppm Magnesium
Auflösung: 5 ppm
Genauigkeit @25°C: ±5% des Messwerts @25°C
Lichtquelle: LED, @610nm
Lichtdetektor: Silizium-Photozelle
Methode: Anpassung der kolometrischen EDTA-Methode durch Calmagit-Indikator. Die Reaktion zwischen Magnesium und dem Reagenz verursacht eine blau bis violette Färbung
Interferenzen: Calcium in der Probe zwischen 300 und 500 ppm kann zu Interferenzen führen, Calcium in der Probe unter 300 ppm und über 500 ppm kann zu Interferenzen führen
Umgebungsbedingungen: Vorbereitete Küvette (Probe + Reagenz) sollte 18 - 28°C haben, 0 bis 50 °C, rel. Luftfeuchtigkeit max. 95 %
Batterietyp: 1,5 V AA
Automatische Abschaltung: nach 10 min

 

 

H319, H373, EUH210

H319: Verursacht schwere Augenreizung
H373: Kann die Organe schädigen bei längerer oder wiederholter Exposition
EUH210: Sicherheitsdatenblatt auf Anfrage erhältlich

 

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: 59968475884

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4.3 ★★★★★
Based on 999 reviews
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Product Reviews
C
Cheryl Belle
Grantham, US
★★★★★ 3
Thin, summer weight throw, quality could be better
Color: Southern Blues, Size: Throw (50 in x 60 in), Color: Southern Blues, Size: Throw (50 in x 60 in)
This is a very light weight blanket and the "fleece" is no where to be seen. The blanket looks like cotton but has a very synthetic feel to it. Three layers implies some weight but it is thin. The construction is sloppy, see images, where the stitching looks slap dash to the point where it cannot be reversed. I liked the color, the blue is a little on the aqua side but it is a very nice calming hue. The stitching is quilt like and nicely done. I noticed other reviews felt like it was a medium weight but the only time I would use this would be to use as a cover if the AC went out. To me, the blanket is decorative and not particularly useful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
H
Hayden
Port Orchard, US
★★★★★ 4
Average quality lightweight throw, not sold on the color
Color: Southern Blues, Size: Throw (50 in x 60 in), Color: Southern Blues, Size: Throw (50 in x 60 in)
This blanket is fairly soft and lightweight, and better suited for the summer months. I don't think the texture and "Southern Blues" color looks as nice in person as in the photos; less cozy and more like a spare blanket you might find in a hotel closet. Interestingly the care tag says that the outer faces are cotton, but the blanket feels polyester and the content tag indicates the same. The stitching and durability feel ok, and it will probably hold up for the occasional machine washing and low heat drying. Overall it's a fine warm season throw but not particularly notable. I would probably recommend one of the darker colors.
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Reviewed in the United States on May 23, 2026
C
circusdaze
Dallas, US
★★★★★ 5
So easy to wash!
Color: Southern Blues, Size: Full/Queen (90 in x 90 in), Color: Southern Blues, Size: Full/Queen (90 in x 90 in)
Two things I love about this coverlet: 1. It's so much easier to wash than a duvet! Or even a duvet cover or a regular blanket, for that matter. The queen-size coverlet fit easily in my washer, and I could have put in another if I had had one. It stayed loose and balanced in the machine - the washer didn't have to readjust its balance during the spin cycles. In the dryer, it didn't wad up into a ball that had to be shaken out every few minutes. It came out feeling softer and looking good, with no wrinkles. 2. It's thinner than a duvet and suitable for warm weather, yet those three stitched layers give it substance and weight that I find more comfortable than sleeping under a pile of fluff or a bed sheet. The soft pastel green color with cream lining (not really reversible due to the hem) is fresh and reminiscent of the 1950s coverlets that my grandmother made. Crocheting was one of her passions, and she'd create huge lacy doilies that lay across the foot of the coverlet. Very pretty look.
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Reviewed in the United States on May 1, 2026
C
Chimi
Phoenix, US
★★★★★ 5
Great summer blanket.
Color: Black, Size: Full/Queen (90 in x 90 in)
I purchased this Berkshire 3-layer fleece blanket, and it has quickly become my go-to for my queen size bed. It fits perfectly with plenty of overhang, making it look great as a top layer or a middle layer.What I love most is the breathability. While the material is technically fleece, the 3-layer design provides a nice "cotton-like" feel that doesn't feel heavy or stifling. I tend to sleep hot, and this blanket does a fantastic job of keeping me cool and comfortable through the night while still providing just enough cozy warmth.At this price point, the value is good. It feels much higher quality than other thermal blankets I’ve tried, and it holds up well in the wash without pilling or losing its softness. If you're looking for a versatile, lightweight blanket that works year-round, this is a solid choice. Highly recommended!
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Reviewed in the United States on May 9, 2026
S
Verified Purchase
Shlhbsn
Lexington, US
★★★★★ 5
Soft, Warm, lightweight, Cozy
Color: Cream, Size: Full/Queen
When I first received this blanket I washed it by itself in cold water with detergent. I did not use a fabric softener or a fabric sheet. I air dried it completely and then put it in my dryer on air fluff for 10 minutes. No shedding and it came out just like I received it. I was concerned about shedding with some of the reviews but I had no issues with that whatsoever. It's warm yet lightweight. I didn't want anything that would make me overly hot because I'm always hot anyway. It takes that cool edge off when you still want your overhead fan on. My daughter said she likes it better than the one she has. I can't remember the brand. I feel it has a good quality. Just make note to wash it as instructed and it'll hold up well and look just as nice as the way you bought it. I'm not sure how the other reviewers that didn't leave 5 stars washed there's, but it couldn't have been the correct way.
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Reviewed in the United States on September 20, 2025

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