The store will not work correctly in the case when cookies are disabled.
Bulk Reef Supply Saltwater Logo
Bulk Reef Supply Freshwater Logo

FREE Shipping Over $49

Free Shipping

Orders Over $49 Ship Free

$5.99 economy shipping on orders under $49

Learn More
| Earn Reward Points
Skip to Content
Menu BRS Freshwater
My Cart
    • My Account
    • My Wish List
    • My Orders
    • Address Book
    • Sign Out
    • Reward Points
  • Sign In
Bulk Reef Supply Mobile Menu
Close

Quick Links

  • Deals
  • Gift Cards
  • What's New
  • Education
  • Clearance
  • Open Box
  • PR Rewards
  • Shop Brands
  • FAQs
  • Saltwater
Menu
Fast Shipping Fast Shipping
Sign up to be a Reward Member Earn Reward Points
Returns 365-Day Returns
Experts Aquarium Experts
  • Fast Shipping Fast Shipping
  • Sign up to be a Reward Member Earn Reward Points
  • Returns Risk-Free 365 Day Returns
  • Experts Aquarium Experts
Loading...
Neptune Systems

LDK Leak Detection Kit

In stock
Out of stock
SKU
211104
Be the first to review this product
$164.99 $164.99

- +
Add to Wish List
Risk Free 365 Returns

Your Satisfaction Guaranteed With
365 Day Risk Free Returns

No longer need what you ordered? Ordered one too many? We've got your back.


Return new, unopened products in original packaging within 365 days for a full refund.

Under 60 days? No problem. We’ll issue your refund to the original form of payment. Over 60 days? Still no problem. We'll issue your refund in the form of store credit, which you can use like cash on our website.


Return unused, open box products within 30 days.

Open box but still unused? We can help. We’ll issue your refund to the original form of payment minus a small 10% restocking and handling fee.

Some exclusions apply, for more information go to Return & Replacement Details.

Skip to the end of the images gallery
main product photo
Skip to the beginning of the images gallery
Details

Add leak detection to your Neptune Apex Controller

Neptune's LDK (Leak Detection Kit) includes everything you will need to add leak sensors to your Apex Controller within minutes.

  • Includes two leak sensors
  • Compatible with all Apex models
  • Powered through Aquabus connection
  • Add up to four total leak sensors

 

Detecting a leak early can be the difference between saving a tank to an entire loss. Neptune's Leak Detection Kit is the perfect solution for anyone that uses an Apex Controller to monitor and control their aquarium. The LDK system will plug right into your current Apex through the Aquabus connections and includes two Leak Detection Sensors. The sensors can be placed in multiple areas around your tank and its equipment. 

Pairing an Apex Controller with the LDK lets you monitor and control your aquarium in the event of a leak or an overflow. With Neptune Fusion, you can easily set up alarms that will notify you if a sensor ever detects moisture, and also control any equipment that is powered by an EnergyBar. One common example of common programming and placement is to place a leak detection probe on top of your protein skimmers lid, and if it ever overflows the sensor can notify your Apex of the issue, and shut down the protein skimmer keeping all the skimmate from flowing back into your aquarium. 

 

Suggested Sensor Locations:

  • Under the Stand
  • Under Carpeting
  • Under RODI Systems
  • Next to ATO Reservoirs
  • Above Protein Skimmer Lids
  • Under Potential Leak Points
  • Next to External Equipment

 

What's Included?

1x FMM Module

2x LD-2 Solid Surface Leak Detection Probe

1x 3ft Aquabus Cable 

 

Note: Updating your Apex Controller to the latest AOS is required.

More Information
More Information
SKU 211104
UPC 019962170157
Aquarium Type Saltwater, Freshwater
Reviews 8
Write Your Own Review
You're reviewing:LDK Leak Detection Kit
Your Rating
Product Questions

Product Questions

Is this compatible with A3 Apex?
Question by: Daniel Ryan on May 16, 2025, 10:50 AM
0
Good question. Yes, this is compatible.
Answer by: Emily B (BRS Staff) on May 16, 2025, 1:05 PM
0
How long are the cables attached to the solid surface leak detector probes?
Question by: Phil on Aug 25, 2019, 1:29 AM
0
Hey there,
thank you for reaching out to us. The cord is approximately 15' on the probe.

Take care!
Answer by: Matt Lucero on Aug 26, 2019, 3:19 PM
0

SIGN UP FOR THE BULK REEF SUPPLY NEWSLETTER

Don’t be the last to know this holiday season about sales, specials, new products, and more!

Sign Up Now
BRS Fresh https://media2.cdn.bulkreefsupply.com/media/logo/stores/1/BRS-Logo-498x174.png https://fresh.bulkreefsupply.com/
BRS Fresh Bulk Reef Supply
  • Facebook Opens a new window
  • Youtube Opens a new window
  • Instagram Opens a new window
  • TikTok Opens a new window

Contact

  • 763-432-9691

  • 8am - 6pm CT M-Th
    9am - 4pm CT Friday
  • support@bulkreefsupply.com
  • 6325 Sandburg Road, Suite 200
    Golden Valley, MN 55427 US

Bulk Reef Supply
About Us
Customer Service
Careers
Wholesale Customers
Instructions
Terms & Conditions
Customer Center
Preferred Reefer Program
International Shipping
Returns & Replacements
Payment, Pricing & Promos
Shipping & Delivery
APL Star Logo
© 2025 Aperture Pet & Life. All Rights Reserved.
Privacy Policy

item(s) Added to Your Cart

Product Name

View Cart Checkout Now
You may also like
1 oz. Bottle BRS Extra Thick Gel Super Glue
Bulk Reef Supply
1 oz. Bottle BRS Extra Thick Gel Super Glue
Rating:
87%
4 Reviews
$7.99 $7.99

Slateways/Aqua Wild Aquarium Backgrounds
SeaView
Slateways/Aqua Wild Aquarium Backgrounds
From: $9.99

Choose Options
Cholla Wood
Liquid Gardens
Cholla Wood
From: $3.00

Choose Options
Alder Cones 25ct
Liquid Gardens
Alder Cones 25ct
$8.50 $8.50

S-Curved Scissors (9.8 inch)
Fluval
S-Curved Scissors (9.8 inch)
$26.99 $26.99

Planaria Trap
ISTA
Planaria Trap
$22.49 $22.49

Iwagumi Substrate - Del Plato Sand (7.7lbs)
Aqua Natural
Iwagumi Substrate - Del Plato Sand (7.7lbs)
$19.11 $22.48

Amazon Wood
Ultum Nature Systems
Amazon Wood
From: $9.99

Choose Options
STEAM Aqua Fish Solar Hybrid Power Robot Science Kit
4M
STEAM Aqua Fish Solar Hybrid Power Robot Science Kit
$19.99 $19.99

Lotus Pods 3ct
Liquid Gardens
Lotus Pods 3ct
$12.00 $12.00

Login and Registration Form

  • Login
  • Register

Registered Customers
If you have an account, sign in with your email address.
Forgot Your Password?
or

Login with Your Social Profile Login with
Continue with Google
Continue with Facebook
Continue with Apple

Personal Information
Sign-in Information
Password Strength: No Password
Back
or

Login with Your Social Profile Login with
Continue with Google
Continue with Facebook
Continue with Apple
  • Forgot Your Password?

Please enter your email address below to receive a password reset link.
Go back