Aquarium Hydrometers Salinity Tests
Fluval Sea Hydrometer provides accurate measurements of specific gravity and salinity in marine aquariums. This easy-to-read hydrometer has clear markings and is compact and easy to use and can be installed inside a tank permanently for continuous readings or used as a portable device.
- Accurately measures specific gravity and salinity
- Compact with clear markings
- Save $9 (57%)
Instant Ocean Hydrometer is accurate, reliable water test equipment is absolutely vital to creating and sustaining a healthy, successful marine environment.
- Accurate to 0-001
- Durable, Permanent Needle Mount
- Easy-Read, 2-Color Scale with Safe Zone
- Extra-Wide Stabilizer Base
- Easy Fill convenience -- NO WET HANDS!
Easy to read and simple to operate, the Instant Ocean Hydrometer delivers precise full-range salinity and specific gravity readings - accurate to 0.001 - and does it each time, every time.
IDEAL FOR USE IN WATER TEMPS OF 68 - 85 F
- Save $13 (56%)