Method SN purity test strips and weighing scale?

[Hyperbunny]

Hi Guys,
Are there recommended test strips for SN and weighing scale for stans SN method

thanks

 

[Nymph]

You can use any kitchen scales that will recognize light weight. There's aquarium tests that are sold in pet shops. They are pretty pricey tho, what also exists is the blood test to test the SN but I don't think it's a very accurate test