SKU: 94772755354

Neptune System 23" Liquid Level Sensor With Clip Mount

Sale price$143.10 Regular price$159.00
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Description

Neptune System 23" Liquid Level Sensor With Clip MountLLS 23 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-23

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.

Liquid Level Sensor- 23″ (LLS-23)

The 23″ sensor is a bit larger version of the 15″ sensor and can be utilized in similar applications to the 15″ but for larger sized-aquariums.   A great application to consider is utilizing these advancing a roller mat.

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SKU: 94772755354

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4.5 ★★★★★
Based on 27 reviews
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Becky
Chelsea, US
★★★★★ 3
Too big, gets hot on bottom
Color: Black
After receiving this, I see it's frequently returned. I wish I didn't buy it. It's too large for my space where I kept my previous warmer and I tried it out; it got quite hot on the bottom. Nothing great about it. I'm boxing it back up and back to the drawing board.
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Reviewed in the United States on February 1, 2026
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TamBerine:
Bozeman, US
★★★★★ 5
Great
Color: Silver
This coffee and tea warmer is an absolute game-changer! I work from home and love keeping my beverages hot throughout the day. This device truly lives up to its promises. It heats up incredibly quickly and maintains a consistent temperature, keeping my drinks warm for the price. I can’t find a better option, and the auto-shut-off feature is a huge plus. The temperature control is precise, and it actually performs as advertised. I highly recommend this product for its affordability, multiple temperature settings, and reliable performance. It has everything I was looking for in a coffee and tea warmer. The previous one I had worked well and had an auto-shut-off, but I kept accidentally shaking the cup, causing it to spill and melt. This one seems to be well-constructed and definitely worth the investment.
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Reviewed in the United States on April 5, 2026
D
Verified Purchase
dee62
Los Angeles, US
★★★★★ 5
No more cold coffee!
Color: Silver
Great price for all the nifty features - timer, auto shut-off, hot and hotter! Large button icons and digital temperature display are easy to see. My coffee and tea stay hot enough to drink without making multiple trips to the microwave because I got busy and let it get cold. New best friend!
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Reviewed in the United States on May 7, 2026
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Verified Purchase
Jossy
Waukegan, US
★★★★★ 5
i can’t believe how long i went without this
Color: Silver, Color: Silver
i never expected how much of a difference this item would or could make in my nightly tea routine. i’m a slow sipper and would normally have to get up and microwave my mug 1-2 times depending on how willing i was to stop everything i was doing and move out of my comfy spot to remedy the impending sad lukewarm experience. YALL! the temperature really does make it taste better (i already knew that) but now i can settle into my spot in cozy PEACE and take as long as i want to to enjoy my tea. i was worried if the lower price point compared to other options on amazon would mean it may be lacking in quality or function, but NOPE! just a genuinely good deal (about $10 at the time of this review) and the features are all there. yes yes yes, go ahead and treat yourself because this one is worth it.
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Reviewed in the United States on June 7, 2026
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Duchess Harbaugh
Cuba, US
★★★★★ 5
Best Drink Warmer I have Ever used
Color: Silver
This is a very attractive addition to your side table or desk. Very streamlined, so takes minimal space. Settings allows you to keep your hot drink Hot for hours. Shuts itself off automatically.
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Reviewed in the United States on June 2, 2026

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