Fully wireless Nursecall system capable of monitoring up to 30 call buttons, door or movement sensors. Easy D.I.Y. wireless installation. The central monitor station indicates the call by voice and lit display. Portable carer pagers receive a voice call signal. Each call button can be wall mounted or used as a pendent.When used with the Nursecall Voice Alert, sensor mats can be activated by the system. All units are battery operated (batteries not included). Monitor and movement sensor can use optional main adaptor power - 12v 250 mA.