Instant Ocean® Hydrometer, One Size
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Tests aquarium salt level and specific gravity.
- Easy-read 2-color scale with Safe Zone
- Improved no wet-hands design
- Extra wide stabilizer base
- Accurate to +/-0.001
- Full range scale
- This hydrometer is a full range specific meter designed to measure a wide range of specific gravities from 1.000 to 1.030. Accurate to plus or minus 0.0001.