The new modules from DigitalAquatics will allow the Reefkeeper line to do more than ever before. The SL2 module provides temperature compensated salinity measurements and it will run $60. The PC1 is a high amperage power controller for all of tour heavy duty water pumps and lighting and it lists for $80. The Hub is an additional power source for your monitoring equipment which can either be stand alone monitor or it can behave as a back up and it will to for a very reasonable $29. The three new modules will all be available in the coming weeks, shipping out in May. Click the read more link for all the pictures.