Features
Easy to replace core refills, just twist off cap - remove used core - insert new core and replace cap
Core displays blue color when plant has enough water and fades to white when it is time to water
Includes 2 replacement sticks for use with small refillable Sustee Aqua meter - Replace core every 6-9 months for best results
Award-winning product design - English language packaging
Sustee collaborated with Tokyo University of Agriculture to improve the design and function of each stick
Discover More Best Sellers in Aquarium Hydrometers
Shop Aquarium Hydrometers
Hikari AccuProbe Aquarium Hydrometer, Full
Aquarium Hydrometers - Hikari AccuProbe Aquarium Hydrometer, Full
Aquarium Hydrometers - Professional Refractometer Saltwater Aquarium,High Accuracy Salinity Tester for Saltwater Aquarium, Marine Monitoring,Fish Tank 0-100 PPT with Automatic Temperature Compensation (ATC)
Aquarium Hydrometers - generic 2 pcs Finishing for Saturated Measure Tester Easy Hydrometer Salimeter Measurer Sea Series Liquid Supplies High Aquarium Densitometer Salt to Sodium Aquatic Meter Hydrometer-
DDMETER Salinity Refractometer with ATC,Aquarium Hydrometer Salinity 0-4% 1.000-1.030RI
Aquarium Hydrometers - DDMETER Salinity Refractometer with ATC,Aquarium Hydrometer Salinity 0-4% 1.000-1.030RI
Aquarium Hydrometers - Aquariums Glass Hydrometer FishTanks Water Temperature Thermometers for Saltwater Marine Aquariums 1.000-1.060
Aquarium Hydrometers - Ade Advanced Optics aaosal-B Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium, 0% - 10% and 1.0 to 1.070 S.G. Dual Scale Hydrometer, Black
Aquarium Hydrometers - Adamas-Beta Aquarium Marine Test Sea Saltwater Hydrometer Reef - Ocean Hydrometer Salinity Meter for Fish Tank Water Salinity
Aquarium Hydrometers - Abuycs Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium, Saltwater Tester Hydrometer, Dual Sacle 0-100ppt & 1.000-1.070 Specific Gravity with ATC Automatic Temperature Compensation
