Instant Ocean Hydrometer
- Accurate to 0.0001 specific gravity
- Full-range salinity and specific gravity readings
- 2-color scale with a safe zone
- Extra-wide stabilizer base
- Durable plastic construction
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A plastic hydrometer that reads both salinity and specific gravity on a two-color scale with a marked safe zone. The listing gives no dimensions, weight or sample size.
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ASIN: B005VQ8MD0Category: Hydrometers
Overview
At the edge of a saltwater tank or any container where salinity matters, this plastic hydrometer gives a salinity and specific gravity reading. A two-color scale marks a safe zone, and an extra-wide base steadies it in the water.
A simple scale with a safe zone and a stated accuracy are the reasons to consider it for routine checks. Practical details are missing, including how deep a sample it needs and what size it is.
Who it's for
Hobbyists who check salt levels and want a straightforward reading without batteries. People who need certified accuracy or readings at different temperatures should use a different instrument.
Pros and cons
- Reads salinity and specific gravity
- Safe zone marked on the scale
- Wide stabilizer base
- Durable plastic body
- Size not listed
- No temperature compensation described
- Plastic scale can scratch
Performance notes
A hydrometer reads density, so the scale is marked where the surface of the sample meets it. The wide stabilizer base helps it stand steady for an even reading. Temperature changes affect density, and the listing does not mention compensation.
Specifications
| Brand | Carolina |
|---|---|
| Material Type | Plastic |
| Measures | Salinity and specific gravity |
| Accuracy | 0.0001 |
| Scale | 2-color with safe zone |
| Base | Extra-wide stabilizer |
Frequently asked questions
Is the Instant Ocean hydrometer digital?
The description does not mention a display or battery. It describes an easy-to-read two-color scale with a safe zone.
What does the Instant Ocean hydrometer measure?
Salinity and specific gravity, with a stated accuracy of 0.0001.
What is the safe zone on the Instant Ocean hydrometer?
The description says the 2-color scale includes a safe zone but does not give its numbers.