-
Double Junction Lab Grade pH Probe - Neptune Systems
Neptune Systems$94.99Double junction probes place a second vessel inside the main electrolyte with a second internal junction. The means that even when the aquarium water eventually begins to make its way in the first compartment, it still has to go through the second... -
23" Liquid Level Sensor (LLS-23) - Neptune Systems
Neptune Systems$84.99The 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...