How to Use the HI758 Marine Calcium Checker

Overview of the Hanna Instruments HI758 Marine Calcium Checker.
The one button design of the Marine Checker Line from Hanna Instruments allows for easy and accurate measurement whether you are just beginning or an expert in the industry.

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[meanmicro]

Excellent piece of kit 5-10 mins I got almost identical readings on 3 try’s, I checked all my tanks (4) and was completely happy with the results thank you

[Desmo]

they need to go back and make this process easier, what a pain if one is gonna be testing frequently.

[ChazAndreWhite]

Please make these videos for ALL your checkers! There is not one for magnesium. This is so much easier for your customers!

[rjfranklin]

Why was her sample RED? Mine is blue!!!

[lilhotdog]

And by the time you finish testing, you'll graduate from college, and start a family

[bgroupeg]

can we use it to determine blood calcium ?

[nazionfilho]

Vocês da Hanna não fabrica Checker de Cálcio pra água Doce não?

[jimjh]

How do we get access to the new .1ml pipette? I have the original Marine calcium checker

[tochase]

what is the "sample" we are inserting with the micro pipette? Is this just more distilled water?

[randybanta]

Can I use this for my pool, frsh water? Chlorine sanitizer

[eleven]

I feel like I need to be a lab tech just to check calcium levels lol

[leftyleft]

So the first Cuvette is distilled water and second part is completely filled with tank water. These directions are confusing without good instructions.

[dobermanguy]

Don't get me wrong I like the Hannah Checkers but just seems way complicated just to check your calcium I think the salifert test is a whole lot easier and I have also heard they have problems with accuracy with the Hanna calcium

[soverjas]

Is it possible to make a Marine Nitrate checker? Would something like that be in the works.

[revecus]

"with everything you need to start testing" still searching for the screwdriver

[casperghost]

my reading i got my first time is 509, that sound about right to you?

[cainchand]

HELP! I follow your instructions to the T. I use rodi water to clean my used cuvette. But I always get really high results! I have re checked using other brand calcium test kits and also get my water tested by my LFS. Why would I always be getting results in the mid to high 500 ppm mark when every other test shows 400-450ppm? Could this be a faulty checker!?!

[TheSimpShow]

This is like I am living in a sci-fi future.

[Angel_A]

Can I clean the cuvette with methylene chloride then methanol?

[bkfishes]

Hello I do all this steps and I get different results tired😓😡