Liquid Level Sensor- 4″ (LLS-4)

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 additives match your dosing solution over a period of time.  For example, if you dosed 250 mL additives over two weeks and you know each inch is 100 mL, then the additive reservoir liquid level would have decreased exactly by 2.5″.

Liquid Level Sensor- 15″ (LLS-15)

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 sure that the water level stays consistent and any drops or gains in water level can be carefully examined to make sure there are no changes to your salinity.  Further, if, for example, the ATO reservoir is empty and the water level in the return pump area starts to fall, then if a COR pump or Vectra pump (coming soon), you can turn the speed of the return pump down to prevent cavitation.

Liquid Level Sensor- 23″ (LLS-23)

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.

Liquid Level Sensor- 35″- (LLS-35)

The largest of the LLS sensors is the 35″ sensor.  This sensor is to be used for large reservoirs that are often utilized for saltwater reservoirs for manual and automatic water changes.

Yes and no.  The sensor aspect (the white ruler section) is obviously supposed to be in your water to measure depth!