The leak detection probes from Neptune Systems are designed to safeguard your saltwater reef aquarium against water leaks, a critical issue that can cause significant damage if left unchecked. These probes connect directly to the FMM module and send an alert to your Apex system when they detect moisture, ensuring you are notified immediately of any potential issues. Two types of probes are available: one for carpeted floors (LD-1) and another for solid surfaces (LD-2), providing versatile protection options tailored to different environments and requirements. Ideal for aquarists looking to protect their valuable reef systems from water damage, these probes offer peace of mind by ensuring swift action in case of leaks.