Edwal Hypo Check tests your fix solution for exhaustion due to silver saturation.
One or two drops will test the fixer and, if the fixers still OK, no harm has been done to the bath.
A 3/4 oz. bottle provides about 800 tests.
If the addition of Hypo-Chek produces a cloudy precipitate, the bath is exhausted and the fixer should be discarded.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 1 inch
Height : 0.5 inch
Length : 2 inch

Item Weight: 2 pounds (View shipping rates and policies)
Shipping Weight: 2.08 ounce (View shipping rates and policies)

ASIN : B00009R6Z5