others are cheaper, the calcium comes with a fluid and a sachet so more expensive. You mix a sachet with 1ml of fluid with the test sample.
Basic principle
add sample to vial
Insert into checker
turn on
press once
wait for message
add 1 sachet and 1ml of fluid to the test sample
re-insert vial to checker
press button
wait for reading
Last edited by Aqua-Digital; 06-24-2011 at 09:55 PM.
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