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Apex A3 Jr & Sensors

A3 APEX Jr, Optical Sensor, Multi-Surface Leak Sensor, Liquid Level Sensor - Reef-A-Palooza CA 2022

Join Us at the Reef-A-Palooza CA 2022 as we look at the new A3 Apex Jr from Neptune Systems. We'll get the inside scoop on how this affordable system is perfect for reefers just getting started and has the capabilities to fully expand with the addition of the Energy Bar, Trident, and more as your tank needs grow. We'll also check out the A3 Apex System, Magnetic Optical Sensor, Optical Mult-Surface Leak Sensor, and Liquid Level Sensors.

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  • On Sale 12%
    Magnetic Optical Sensor (MOS) - Neptune Systems
    On Sale 12%

    Magnetic Optical Sensor (MOS) - Neptune Systems

    Neptune Systems

    $41.99
    $36.95
    The Magnetic Optical Sensor replaces our optical sensor with magnet and offers an improved look, feel, and magnetic design that also lends itself to help prevent water incursion into the sensor. This sensor plugs into your FMM and, using reflected...
  • On Sale 12%
    Optical Multi-Surface Leak Sensor (LD-3) - Neptune Systems
    On Sale 12%

    Optical Multi-Surface Leak Sensor (LD-3) - Neptune Systems

    Neptune Systems

    $42.99
    $37.83
    New to the leak detector offerings is the Optical Multi Surface Leak Sensor (LD-3).  This is a weighted sensor that is an improved sensor and design over our Solid-Surface Leak Sensor (LD-2).  Those improvements include: An epoxied design...
  • On Sale 12%
    15" Liquid Level Sensor (LLS-15) - Neptune Systems
    On Sale 12%

    15" Liquid Level Sensor (LLS-15) - Neptune Systems

    Neptune Systems

    $64.99
    $57.19
    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...
  • On Sale 12%
    4" Liquid Level Sensor (LLS-4) - Neptune Systems
    On Sale 12%

    4" Liquid Level Sensor (LLS-4) - Neptune Systems

    Neptune Systems

    $47.99
    $42.23
    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...
  • On Sale 12%
    23" Liquid Level Sensor (LLS-23) - Neptune Systems
    On Sale 12%

    23" Liquid Level Sensor (LLS-23) - Neptune Systems

    Neptune Systems

    $84.99
    $74.79
    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...