SKU: 59968475884

Magnesium Checker HC ® für Meerwasser

$71.73 $79.70
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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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4.5 ★★★★★
Based on 7 reviews
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Product Reviews
M
Verified Purchase
Mona T.
San Leandro, US
★★★★★ 5
Attractive
Size: 4 Panel-88'', Color: Grey
The assembled product is just as described. The screens look great! I am using them to hide the cluttered shelving in my garage. The area now looks quite neat Something I must say, though, is that the assembly was extremely difficult. I had to use a silicone spray and some pounding to get the A and B poles to fit together. Also, it required a great deal of strength to stretch and hold the fabric panels so that the bars inserted in each hem lines up with the screws inserted in A/B poles. I strongly recommend having a partner to help with the assembly. while sc and screw into poles them once inserted intetchedtne end of each pole ( and B poles barely fit together. I used silicone spray on the end and then pounded them
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Reviewed in the United States on December 12, 2025
K
Verified Purchase
karine
Alexandria, US
★★★★★ 5
Works
Size: 3 Panel-102'', Color: Beige, Size: 3 Panel-102'', Color: Beige
It’s beige and not white. Once install - hard to disinstall. Need a drill to put it together
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Reviewed in the United States on May 4, 2026
R
Verified Purchase
ralversity
Draper, US
★★★★★ 3
Does the job, but assembling by yourself is a nightmare
Size: 4 Panel-88'', Color: Black
Does it do the job? Yes, although as others said there are small gaps but it's not a huge deal. The price is also good. But the reason I'm giving it a 3/5 is simply because the assembly for this was a complete nightmare. I honestly don't think I would recommend this to anyone unless they have another person to help them assemble it, because doing it by myself was terrible. I don't think I'd buy this again, I think I'd opt to just spend a bit more money and save myself the trouble personally.
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Reviewed in the United States on May 29, 2026
T
Verified Purchase
Talagand
Whiting, US
★★★★★ 4
Reasonably adequate room divider
Size: 4 Panel-88'', Color: Beige
I'm reviewing this as I assemble it. Couple things: 1. I didn't expect as much assembly. I've ordered dividers before and they more-or-less came as one unit. Sometimes the panels needed screwing together. These require complete assembly and come largely as three rods: two make up vertical columns and snap together. Another one (called part "C") makes the horizontal columns and you have two of these per panel (one attaches to part "A" and the other part "B"). These parts are metal with a plastic shim. Using the wood screws to attach to part "C" is a real pain in the neck. There's not much holding the panel in place so it's a little tricky. One tactic I've found while I'm assembling that works for the initial connections from parts A and B to their respective "C" rods is to hold the screw in place with a screw driver and then rotating the rod around the screw. This will do a number on your hands if you aren't wearing gloves. This obviously doesn't work when completing the connection. Using a driller driver on this is really near impossible because there isn't anything you can use to secure it in place. You can use it on the first panel, but as it gets longer, it becomes increasingly difficult and because it isn't wood, it's really tight. I considered drilling larger pilot holes but since there are only 4x4=16 screws I need to screw in, I just decided to use my screw driver to complete it. 2. Also related to assembly. When completing the panels (attaching parts "A" and "B" to parts "C" that have the cloth cover on it), you have to be careful that when you tighten that side that it isn't loosening the other side. Because the pilot holes are so tight, you can end up rotating the rod, which rotates it in the same direction as looser on the original side. Having someone hold the "C" rod in place while you screw it in is probably the easiest approach. I didn't have a 2nd person, so I just had to keep flipping back and forth and tightening both sides as I screwed it in. Not the worlds biggest deal, but annoying nonetheless. 3. The way the instructions are written, they seem to suggest building this thing progressively; that is, you do panel 1, then 2, connect them together, then do 3 and connect it, etc. I took a different route that I suspect saved me quite a bit of trouble, and I assembled all four panels first and THEN connected everything together. 4. For the love of God make sure you check that the plastic tip is on the same side for every panel. Otherwise, you have to take one side apart again and reverse it. On the bright side, if this happens, you've essentially bored out the pilot holes to be the correct size... which is having me question if I shouldn't have just bored them out to the appropriate width in the first place. 5. Attaching all of the panels together is also an enormous pain in the ass unless you happen to have an 88" long elevated surface. Attaching the legs either requires you to elevate one side, which will invariably twist the inexplicably cheap material in the bottom connectors... or you can attach them sideways... or you can put this thing upright, having two people hold the panels in place while you use the allen wrench to tighten the bolts on the underside. None of those are particularly great options. NOW on to the utility itself. 1. The panels do let some light through (I didn't believe their advertising, and that was one of the reasons that I bought beige, is that I wanted it to not be too dark). They aren't transparent though, so it isn't that far off from their description. They functionally work great, and keep the mess of wires hidden and when I'm sitting at my desk, actually reflect quite a bit of light into my office. Great! 2. My wife has described these as "the most hideous piece of furniture ever conceived of by man." So it does not have spouse approval factor. Granted, she will seldom be in my office area, so that isn't the end of the world. 3. These are really hard to align in a way that doesn't look a little tacky. There are some plastic connectors but they don't do a bang up job of keeping these in place. Each panel is slightly tilted and it's... quite obvious. I may at some point make my own improvements to these to help make them more level. It's not a particularly expensive product so I wasn't expecting much so it's fine and I'm not going to ding them on the rating because of it. All said, would I buy this product again? Probably not. It's assembly was ~90 minutes which is about 75 minutes longer than I was anticipating spending on this (not including the 5 minute writeup that I'm doing here). But am I going to return it? Also no, if for no other reason I'd be just as annoyed taking it apart and putting it in the original box to return it.
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Reviewed in the United States on October 31, 2023
M
Verified Purchase
Michael S
Lowell, US
★★★★★ 5
Great Product that does exactly what it says it will.
Color: Beige, Size: 34"- 3 Panel
I really enjoy this product and it does exactly what it describes. I use it on my balcony. It is effective, but still very lightweight. It is easy to assemble as well. The price point is excellent. Also, I had an interaction with the company about an issue and they were incredibly responsive and helpful, fixing the issue immediately. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026

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