🏀 Free shipping on orders over $50 · 30-day free returns · 100% authentic

AQUA GEEK Digital Hydrometer, Salinity Meter MS-31

★★★★★ 4.5 rating · 21 reviews · 207+ sold
$44.88 $58.3440013885498 30% OFF
Flash Sale ends in
00d 00h 00m 00s
100% Authentic · Money-back guarantee
Free Express Shipping · 2-5 day delivery
30-Day Free Returns
6-Month Quality Warranty

Product Details

The Digital Salinity Meter MS-31 is a convenient tool for accurately measuring salt concentration.

- Model Name: MS-31
- Brand Name: AQUA GEEK
- Accessories: Cleaning cloth, instruction manual

Used a few times for maintaining a saltwater aquarium.
It was easy to measure specific gravity and felt good to use.
I am selling it because I have stopped keeping fish and no longer have a use for it.

Category
Saltwater Fish Supplies
Condition
No noticeable scratches or marks
Shipping
Included in price (by seller)
From
Osaka

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (21)

4.5
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User6838206
★★★★★
2026-11-08

Produto prático, cumpre sua função de forma confiável.