The RKM-SL2 is the newest System Lab module from Digital Aquatics. It's a big leap forward with fully (and individually,) isolated ph and salinity ports. On top of that, the Digital Aquatics salinity probe is equipped with full digital temperature compensation built in! This make it easy to calibrate and ideal for testing a variety of tanks. Whether you're mixing for a water change, monitoring your main system, checking up on a quarantine or frag tank the SL2 with conductivity probe will report a true and accurate value!
The SL2 also allows for another temperature probe to be added to the system for redundant monitoring as well as two more switch inputs; great for ATO systems or leak detectors.
The DA salinity probe is nearly 30% more cost effective than competitive options and when cared for and kept clean our probe will last for many years. Great quality and value is part of our commitment!