SKU: 77481051737

Neptune System 15" Liquid Level Sensor With Clip Mount

Sale price$107.10 Regular price$119.00
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Description

Neptune System 15" Liquid Level Sensor With Clip MountLLS 15 Never before offered in the aquarium industry the LLS Sensors allow for the measurement of water depth in inches or centimeters. Available in four different sizes 4, 15 23 and 35 each sensor has a special place in helping understand the water level in the sump, aquarium, reservoirs, and other liquid holding containers. No longer does one need to physically look to observe how much water level is above or below a specific point, but now simply

LLS-15
Never before offered in the aquarium industry the LLS Sensors allow for the measurement of water depth in inches or centimeters.  Available in four different sizes- 4″, 15″ 23″ and 35″ each sensor has a special place in helping understand the water level in the sump, aquarium, reservoirs, and other liquid-holding containers.  No longer does one need to physically look to observe how much water level is above or below a specific point, but now simply open the Apex Fusion App and observe.
The LLS sensor can connect to any available FMM port in the Apex System.  Liquid will enter the plastic envelope around the thin material of the sensor.   Once the liquid is in contact with the sensor material the LLS uses a patented resistive sensing technology to accurately and reliably measure the liquid level in a container.
 
Included with each LLS sensor is a clip that allows for the mounting of the sensor to the side of the sump, aquarium or container.  Have a Euro braced sump?  Don’t worry you can simply mount the LLS sensor to a baffle inside the sump.
 
Later in 2022 Neptune Systems will release a magnetic version of this clip and a clip that mounts to a euro-braced sump or aquarium.
 
Generally the sensors respond to liquid level changes at a rate of about fifteen seconds per inch of water level change.  So if the water level was suddenly decreased three inches, then it could take up to forty-five seconds to reflect this change.  While quick depth level changes are uncommon in an aquarium, and, typically, changes  are reflected more quickly than this, for this reason, it is best practice not to use the LLS for immediate control needs— like auto top-off control.
 
Once calibrated the LLS is accurate to about two-tenths of an inch.
 

Probably the most popular sized level sensor this is the ideal sensor for your average containers used in and around aquarium.  This will be the ideal sensor for measuring the return pump section of your sump.   You will be able to make sure that the water level stays consistent and any drops or gains in water level can be carefully examined to make sure there are no changes to your salinity.  Further, if, for example, the ATO reservoir is empty and the water level in the return pump area starts to fall, then if a COR pump or Vectra pump (coming soon ), you can turn the speed of the return pump down to prevent cavitation.

Another great application of the 15″ sensor is to place in your ATO reservoir.    Especially if you have a reservoir you need to fill manually, often times you simply look at the reservoir while going out the door and know if it is enough water to cover the evaporation rate while you’ll be gone.  If not, you usually stop what you are doing and take care of it.  Now, simply pull out your Apex Fusion App and know without even looking!

 
Shipping Notes
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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]
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SKU: 77481051737

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Stewart R James
Boise, US
★★★★★ 5
Corner Shelves
Color: Natural Wood, Size: 11.2inch(2PCS)
Great quality, looks very good and easy installation. Vendor shipped promptly and packaged well.
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Reviewed in the United States on October 22, 2025
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Linda Montoto
Massapequa, US
★★★★★ 5
Good quality wood.
Color: Dark Walnut, Size: 13.2inch
Very good quality. Very happy with this purchase.
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Reviewed in the United States on May 27, 2026
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Mickey Ryder
Waukegan, US
★★★★★ 5
Awesome!
Color: White and Black, Size: 15.7"
Nice sturdy shelves. Looks awesome on my walls.
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Reviewed in the United States on May 19, 2026
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norton
Lexington, US
★★★★★ 5
Great for knick-knacks and toiletry items
Color: Dark Brown, Size: 15.7"
Perfect for the bathroom. I love that you can position the shelves in different arrangements. Sturdy enough for knick-knacks and toiletry items. Looks exactly as pictured.
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Reviewed in the United States on May 27, 2026
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Matt
Bozeman, US
★★★★★ 4
Shelf
Color: Black and Gold, Size: 15.7"
Some holes are not pre drilled, over all easy to assemble. Looks good on wall and surprisingly sturdy
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Reviewed in the United States on January 7, 2026

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