The Amperor power integrator is:
A solar/wind MPPT controller
A Battery to Battery charger (replacing a split charge system)
A Vehicle battery top up charger (does the same job as as battery master)
In their words "The Power Integrator takes inputs from the vehicle alternator, solar panel and wind generator then provides the optimum charge for the leisure battery. The unit can boost the input from the alternator, turning it into a multi-stage charging output more suitable for a leisure battery. When used in solar/wind mode, the system acts as a regulator which can also trickle charge the starter battery and help combat drain during winter storage."
This device has been mentioned before by a trade member in the solar sub forum but as it does a lot more than solar I thought I would bring it up here.
I haven't got one yet but I'm actively looking how I could fit it as an after market addition to my Chausson. It won't be straightforward. As there are already two relays a distribution system and a control panel integrated together.
Amperor were really quick in sending me an email with 6 pdf's attached to describe the product, accessories, and installation information.
Link to their website