The digital temperature/humidty sensor is not available yet. When available it will be connected via the lowspeed aquabus port (= an extension port).

External sensors from other devices work only when these devices have an aquabus port which is compatible to the aquaero 5. The only devices which can be used here are the aquastream XT and poweradjust 2.

When you connect two aquastream XT pumps, six poweradjust controllers and use the software sensors (not available yet) you end up with 20 sensors. The other 20 are reserved internal for upcoming devices and whatever the future brings.

PWM is a pulsed 12V signal which controls the power by switching the power VERY fast on and off. Not every stuff is compatible to that kind of power control. It is ideal for lightning effects like LED stripes etc.

The LED output is designed for our RGB LED. In theory you could also connect your own LEDs but is is not recommend.

You can use the 4th fan channel like the other three. The PWM signal is only an optional addition on this channel.

The switch is a relay which can be used to turn off/on the PC for example or to take control about other stuff that you want to switch into different states.

When connecting a normal pump you can only control it by the power supply (0 - 12V) while the aquastream has an aquabus interface to communicate with the aquaero so you can see several technical data like voltage, frequency etc. and you can do some basic adjustments.

It is not possible to connect two or more aquaeros together. The low and highspeed aquabus uses different communication protocols. Lowspeed is mainly used for older devices or devices which need no large bandwidth while the highspeed bus is mainly used for newer devices which need more bandwidth.