Rke
Step up to the RKE
I have one complete which is sitting unused since Dec 2013 includes the following:
RKE head unit, 3- power stripes, 1- net module, 1- SL1, 1- SL2 v2, 1- float switch with acrylic bracket, 1- two outlet HD module, all needed cables ( bus and Ethernet), 2-firmware update modules, 3-used probes(temp, PH, and latest Salinity)
Everything $450/BO
* the head unit is new replaced by manufacturer under warranty last May, SL2 v2 and Salinity probe were also swapped out last Summer.