The N-8033MS is a flush or surface mount master station that connects to an N-8000EX or N-8010EX intercom exchange by a single twisted pair wire. It is capable of full duplex hands-free or handset communication with other full duplex stations. The N-8033MS supports one-touch dialing from four control inputs and connection of an RS-191 handset for privacy. The N-8033 is IP65 and features a chemical resistant membrane switch and polyester film finish, making it suitable for hospital use.