***Seller's note: New design for 2023 using our stronger 3/4" magnets.***


 Up for sale is a brand new Optical Sensor Holder. Each holder comes with 2 fully plastic coated N52 magnets that are rated saltwater safe by the manufacturer. No cheap epoxy coating that chips off easily, and with a full N52 rating you wont find stronger magnets. Holder comes with cord routing notch so you don't have to worry about feeding the cable through the hole, just unscrew the sensor, slide the wire through the holder and tighten it back down. Works great for the Neptune OS-1 Optical Sensor.

 Printed out of PETG filament to be incredibly strong. PETG is a commonly used 3D printing filament for items destined to be in aquariums as it is generally considered "Reef Safe" by leading experts. PET is most commonly found in plastic water bottles and is recyclable.

 Now offering translucent colors as well as black, if you'd like another color, please shoot me a message and we can print some. These are printed to order, so please allow a little extra time for this. Custom colors can be done on orders of 2+ 

 If you are unhappy with the product after receiving it, returns are accepted. Please note that this is a 3D printed item and may show layer lines or slight imperfects as the nature of the manufacture.

Shipping in the U.S. ONLY for now. 

Will be working on designs for other reef related items soon. If there’s any items you'd like, feel free to contact me and I can work on it as time allows.


 *Please note that are not affiliated with Neptune Systems or any other manufacturers, we make products where we see a need in the hobby, if you'd like to see any other products, let us know and we will see what we can do.*