AQUA TEST detects the hardness of water (Water hardness test). Regular maintenance of electrical household appliances, based on water hardness, will mean a reduction in cost for repairs.
Instructions for use:
1. Dip the tester in a glass of water for 1 second
2. Take the tester out of water and wait for 60 seconds
3. Match the colour appearing on the sensitive area to colour chart to determine hardness of water.
