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FEATURES~Large LCD Display Simultaneously Showing Aquarium&Ambient Temperature~Selectable temperature Unit C Or F~With Adhesive Tape At Back Side ..
Aquarium Systems HydrometerThis is an easy to use scientific instrument that measures both the specific gravity and salinity of tropical saltwater aqu..
It's designed for testing the suger content and specific gravity of liquid.Ideal for Home Brew, Wine making, Agricultural, Gardening & Educational..
The re-designed deep six hydrometer with improved calibration and bubble diffuser ensures more accurate readings of your aquarium salt levels. Also in..
Compact design with large, easy-to-read markingsIdeal salinity range clearly identified in green for added convenienceCan be permanently installed ins..
Hanna Marine Salinity Tester HI98319 Designed to bring simplicity to salinity testing during the any process, the HI98319 Marine Salinity Tester ..
Automatic Square Saltwater Hydrometer Salt Water Salinity Meter For Aquarium Marine Sea Saltwater Accurate Description:Foursquare Size:9*12cmColo..
V2 Version include new color display
TDS function add
Apps upgrade on the software
Eliminate the Uncertainty Associated with Mechanical Refrac..