Ion director IL Fully Automatic Measurement and Control of Ca, Mg, K, Na, NO3 The ION Director (IOND for short) uses state-of-the-art ion-selective technology to automatically and accurately measure essential water parameters – calcium, magnesium, potassium, sodium and nitrate – with maximum comfort and affordable operating costs. [...]

API Test Tubes API® TEST TUBES are compatible with all aquarium water test kits and are perfect for testing multiple water parameters at once. Package includes 24 glass test tubes with plastic quick-release caps.

API 5-in-1 Tests Strips API 5-in-1 Test Strips API® 5-IN-1 Test Strips are a quick and easy way to monitor the 5 most important aquarium water parameters - pH, KH, GH, nitrate, and nitrite - in one step. Simply dip a test strip...

API high range PH test kit API HIGH RANGE pH TEST KIT for freshwater and seawater. API High Range pH Test Kit measures pH changes in marine aquariums, African cichlid aquariums and even highly alkaline tap water. The API High Range pH Test Kit measures the pH of...

Ion director + GHL DOSER 2.2 (slave) Fully Automatic Measurement and Control of Ca, Mg, K, Na, NO3 The ION Director (IOND for short) uses state-of-the-art ion-selective technology to automatically and accurately measure essential water parameters – calcium, magnesium, potassium, sodium and nitrate – with maximum comfort and affordable operating costs.<br...

Ion director + GHL DOSER 2.2 Fully Automatic Measurement and Control of Ca, Mg, K, Na, NO3 The ION Director (IOND for short) uses state-of-the-art ion-selective technology to automatically and accurately measure essential water parameters – calcium, magnesium, potassium, sodium and nitrate – with maximum comfort and affordable operating costs. [...] ...

Ion director Fully Automatic Measurement and Control of Ca, Mg, K, Na, NO3 The ION Director (IOND for short) uses state-of-the-art ion-selective technology to automatically and accurately measure essential water parameters – calcium, magnesium, potassium, sodium and nitrate – with maximum comfort and affordable operating costs. [...]

Areometer 260mm