4 X Switch Ports
With four switch input ports you can add another level of automation to your tank/system. Add float switches, leak detectors, ATO systems, and much more!
IMPORTANT: Never apply power to the switch inputs. They are designed to simply be shorted together by a contact switch. That is all that's needed to trigger an event.
1 x Relay Port
Program like an output on the PC4 the relay port will turn on/off a device like a light switch. This port does NOT power the device but switched the line voltage of an item plugged into the port.
The relay port can switch AC or DC power and is ideal for triggering external systems with the ReefKeeper. It's another great automation feature for your tank.