PowerCombi MasterBus InterfaceBy adding the PowerCombi MasterBus Interface to your installation, you can control the PowerCombi via the MasterBus communication network. A RJ45 communication cable is included in the delivery. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.