Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
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Description
Neptune Apex FMM Optical SensorNeptune Apex FMM Optical Sensor Overview This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto top off), as a high level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted into custom brackets or through a hole in a vessel. Included are a fastening
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 1729 reviews
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Product Reviews
★★★★★ 5
Beautiful Blue
Color: Ocean Blue
The blue bracelet was on my Saved list for months & when the price dropped I jumped. SO happy with this purchase-The blue &18k gold finish color combo is elegant. Subtle VanCleef vibe. Quality top notch costume jewelry. Fit perfect, clasp secure. Wish company made matching necklace & earrings!
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Reviewed in the United States on January 30, 2026
★★★★★ 5
The WORLD is your oyster, buy it sis.
Color: Ocean Blue, Color: Ocean Blue
I bought this as a back up and I am blown away! The packaging/gift bag is so cute! The color? Eats zown. Hard for me to describe the color but it's mesmerizing. Worth the money. The quality is very much VC-ish.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
More beautiful than pictured - for real!
Color: Ocean Blue
Looks luxurious, very very beautiful, stones so pretty and looks real. I bought 3 smallee than the standard size and cannot fit my hand. Gowa half way around aa i jave big wrists but they are so beautiful i wont return them. Unlwas theee is a 7.5 or 8 available. Will upload pictures when im home
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Reviewed in the United States on December 23, 2025
★★★★★ 5
Nice style !
Color: Pearl White
Very nice style can go with anything comfortable to wear.
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Reviewed in the United States on February 7, 2026
★★★★★ 1
Defective clasp
Color: Sweet Lilac, Color: Sweet Lilac
I recently purchased this bracelet and while I love the design, the lock is unfortunately not functional and won't stay secure. I am torn on this review. The bracelet is absolutely stunning I'd give the look a
5-star. It looks high-end and the design is perfect.
The functionality is a 1-star. The lock is completely defective and does not stay closed, which makes it unwearable. It's disappointing to have such a beautiful piece that I can't actually use. If the clasp worked, this would be a perfect purchase.
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Reviewed in the United States on December 29, 2025
