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Approvals and Conformities
Product Attributes
![](/content/flags/flag-of-united-states.png)
United States
Shipping Weight
1 pounds
ECCN
EAR99
Manufacturer P/N
FR-1
Schedule B Code
8507.90.4000
Pack Quantity
1
Make SkyGeek.com your first stop for all your aviation-related needs, including battery-related items like this hydrometer. You can use this convenient tool to check the electrolyte level of your aviation battery periodically-this way you know when you need to order a few more quarts of electrolyte fluid (battery acid) from your friends at SkyGeek.com.
This Gill FR-1 Battery Hydrometer will tell you the correct ratio of liquid to the density of water. Pick up a few today and keep them handy in your pocket or aircraft hangar.