SKU: 99438999898

Neptune LD-3 Optical Multi-Surface Leak Sensor

Sale price$534.15 Regular price$593.50
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

Neptune LD-3 Optical Multi-Surface Leak SensorNeptune LD 3 Optical Multi Surface Leak Sensor Neptune LD 3 Optical Multi Surface Leak Sensor is used to detect water spillage on various surfaces to help prevent potential disasters. Be alerted of water spillage and take corrective action before disaster strikes Optical sensor technology More reliable than analog counterparts Epoxy coated and corrosion resistant Can be reused after contact with water Nonreactive to metallic surfaces no more false

Neptune LD-3 Optical Multi-Surface Leak Sensor

Neptune LD-3 Optical Multi-Surface Leak Sensor is used to detect water spillage on various surfaces to help prevent potential disasters.

Be alerted of water spillage and take corrective action before disaster strikes

  • Optical sensor technology
  • More reliable than analog counterparts
  • Epoxy-coated and corrosion-resistant
  • Can be reused after contact with water
  • Nonreactive to metallic surfaces-- no more false alarms
  • Multiple applications-- can be placed almost anywhere
  • Weighted to stay flat
  • Connects to FMM port to communicate with Neptune Apex controllers

Neptune's LD-3 Multi-Surface Optical Leak Sensor marks a significant improvement over its analog counterpart, the LD-2 Solid Surface Leak Detection Probe. While the LD-2 utilizes conductive strips to detect fluid leaks on surfaces around your aquarium, the LD-3 takes advantage of optical sensor technology instead. This shift in sensor technology gives the LD-3 two distinct advantages over the LD-2:

Reusable and resistant to corrosion. The LD-3 sensor can be reused after contact with water. Unlike the conductive strips of the LD-2 which are prone to corrosion from contact with saltwater, the LD-3's epoxy-coated optical sensors can continue to provide long-lasting leak detection after repeated contact with saltwater & with no risk of corrosion!

Multi-surface applications with no false alarms. The conductive strips used on the LD-2 can sometimes give a false alarm when placed on metallic surfaces. With its optical sensor, the LD-3 can effectively be used on any hard surface material type, including metal and epoxied cement, without the risk of triggering false alarms.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 99438999898

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Monica Alzate
Bozeman, US
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
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Heather260
Boise, US
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025
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Nick
Port Orchard, US
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
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Reviewed in the United States on March 24, 2026
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Bargain Rig
Alexandria, US
★★★★★ 5
Comfortable, Durable, and Stylish
Perfect gift choice! Excellent quality socks with a variety of colors to match any wardrobe.
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Reviewed in the United States on November 30, 2025
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Maranda
Cuba, US
★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
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Reviewed in the United States on March 16, 2026

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