D-D H2Ocean Refractometer With Seawater Calibration Coral RX Tropic Marin® Pro-Reef is particularly

Tropic Marin® Pro-Reef is particularly well suited to reef aquariums

Ready to use premium live sand

Powered by a 12v DC motor with ARF controller

Twin outlet

D-D H2Ocean Refractometer With Seawater Calibration Coral RX Tropic Marin® Pro-Reef is particularlyD D H2Ocean Refractometer is a hand held instrument for the measurement of the TRUE Salinity and Specific Gravity (S. G.) of sea water by refractive index. Easy to read. Has a copper internal body to conduct heat faster than aluminium and plastic. Auto temperature compensation (ATC) ranging from 5 to 30 degrees Celsius. Highly accurate. Easy to calibrate. A new finer scale running from 20 40ppt salinity (SG 1. 015 1. 030)