Βλέπετε 1–9 απο 14 αποτέλεσματα

tds meter DD

24.90
A TDS Meter measures the amount of Total Dissolved Solids (TDS) in a solution. Since dissolved ionized solids like salts

Hanna Checker®HC Nitrate colorimeter, LR (NO3)

79.00
Hanna Checker – Nitrate (NO3) Colorimeter   The HI781 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses

Red Sea Saltwater Refractometer

78.40
SEAWATER REFRACTOMETER High-Accuracy Seawater Refractometer    Red Sea’s Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater

Hanna Waterproof Salinity tester

103.90
Salinity Tester – digital Salinity tester   Our new HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium.