[Accurate & Reliable Measurements] This automatic square saltwater hydrometer provides highly accurate readings for salinity and specific gravity in your marine or brackish aquarium. its precision engineering ensures reliable results every time making it a must have tool for serious aquarists.
[Durable & Easy to Read] Crafted from materials this salinity meter is built to last. the clear easy to read scale ensures quick and accurate readings while the sturdy construction withstands regular use in saltwater environments.
[Ideal for Marine & Brackish Aquariums] Perfectly suited for both marine and brackish water tanks this hydrometer delivers accurate salinity and specific gravity measurements. its temperature compensated design works best in warm water aquariums between 20°c and 30°c.
[Automatic Level Function] Designed with an innovative automatic level feature this hydrometer eliminates human error by automatically identifying the correct water level. no more guesswork just precise measurements for your aquarium maintenance needs.
[Patented Design with Engraving] Each hydrometer features a unique engraved patent number guaranteeing authenticity and quality. this professional grade instrument meets the highest standards for marine aquarium testing equipment.

Spec:

Description:
Size: 9*12cm
Feature:
Accurate, durable, and easy to read sea water hydrometer.
This product is designed with an automatic level function, can automatically identify the level to avoid errors.
Very accurate measurement readings, please rest assured to purchase.
And each hydrometer has a engraved patent number.
Note:
Fit for warm water aquarium (20°C -30°C).
Temperature changes will cause the reading changes.
The accuracy of unit proportion is up to plus or minus 0.001.
Package included:
1 x Hydrometer
1 x Stick

Package List:
1 x Hydrometer
1 x Stick