Apex Probes

Neptune Systems Magnetic Probe Rack Features – MPR: Organizes up to four probes. Designed specifically for the Apex Controller probes, a perfect fit for the thicker temp probes. Built with an all acrylic weather and shatter resistant design...

Probably the most popular sized level sensor this is the ideal sensor for your average containers used in and around aquarium.  This will be the ideal sensor for measuring the return pump section of your sump.   You will be able to make...

This kit was created to be used in conjunction with Neptune Systems salinity/conductivity probe.  It allows the probe to stay clean and fixes a well know issue with the salinity probe.  Microbubbles no more.  Kit Includes: Salinity...

This kit was created to be used in conjunction with Neptune Systems salinity/conductivity probe.  It allows the probe to stay clean and fixes a well know issue with the salinity probe.  Microbubbles no more.  Kit Includes: Salinity...

The 4″ LLS is the smallest of the four sensor offerings.  It is the perfect fit for small reservoirs for small sumps, ATO reservoirs and additive containers.  This can be a great solution to double check that liquid additions of your...

The 23″ sensor is a bit larger version of the 15″ sensor and can be utilized in similar applications to the 15″ but for larger sized-aquariums.   A great application to consider is utilizing these advancing a roller mat...