[Coral-List] Marine water test kits

[Barbara Gratzer]

Dear coral-listers, 

It would be great to receive some help in the following matter. 
Working as a marine biologist and reef manager in Maldives, I am looking for some test kits, which are easy to handle and low in cost. 
Test kits should allow for testing the following parameters:
Calcium 
pH Value 
Ammonia 
Nitrite 
Nitrate
Phosphate 
Refractometer for salinity
Alkalinity
And eventually also tests for these parameters:
Strontium
Iodine
Magnesium
E.coli
I read that test kits from seifert are quite reliable. The problem is the shipping: not possible to Maldives in the online stores I have found. 

Does anyone have some recommendations for me?

Thank you very much in advance!

Warmest, 

Barbara Gratzer
Resident Marine Biologist
IUCN Maldives Marine Projects
CDE -Reethi Beach Resort
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mobile: +960 7645346
email: barbaragratzer at gmail.com