Neptune LDK Leak Detection Kit

Protect Your Aquarium from Costly Leaks

Aquarium leaks are one of the most dreaded issues for any aquarist. The Neptune LDK Leak Detection Kit helps you detect leaks early — when it’s just a drip — and take action before it causes expensive damage to your home and equipment.

Features & Benefits

• Instant leak detection on contact

• Alerts sent directly to your mobile device

• Monitor up to four locations (two probes included)

• Includes FMM (Fluid Monitoring Module) for easy sensor connections

• Remaining ports can connect additional leak probes or sensors

• Installs in under 5 minutes with no complex programming needed

• Compatible with Apex, Apex Lite, and Apex Jr. systems

How the Neptune LDK Works

The kit includes the FMM module and two leak detection probes. When moisture is detected, your Apex can instantly:

• Sound an alarm

• Send an app notification or text alert

• Trigger automated actions like turning off pumps or closing solenoids

You can expand monitoring by adding up to two more leak detection probes, flow sensors, or optical sensors via the extra ports on the FMM.

Simple, Plug-and-Play Installation

Connect the FMM module to your Apex, place the leak sensors where needed — under the sump, behind the tank, or beneath plumbing — and you’re protected. No complicated coding or setup.