Neptune Systems LD-3 Optical Multi-Surface Leak Sensor Marine Dry Rocks This product is essential for

This product is essential for maintaining optimal calcium levels

Both Blue and Pro models also feature a re-balancing of color channels and LED (Diode) mix to augment

It features a full front glass opening door with snap closure

This sensor is to be used for large reservoirs that are often utilized for saltwater reservoirs for manual and automatic water changes

It can cause burns and even fatalities to your pond fish

Neptune Systems LD-3 Optical Multi-Surface Leak Sensor Marine Dry Rocks This product is essential forNeptune'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 utilises 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