Greentest 3 is a pocket-sized laboratory for comprehensive protection of your health. Measuring nitrate levels and water hardness in just a few seconds! Why risk it when you can just check? After all, a scientific approach to a healthy lifestyle is now available to everyone.
-Measuring the level of nitrates
-Slim double probe
-More than 60 product names
- Determination of water hardness.
Colors: black, white
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