Check the listing for details. Monitored Emergency Alert System Plug 'n Power 49-2575 Radio Shack Central 1000. Color: White, Condition: New. Listed at 12.00 USD. Brand New Old Stock Unused in original box and packaging. Monitored Emergency Alert System Plug 'n Power Compatible 49-2575 Radio Shack Central 1000. Item Description:Monitored Emergency Alert SystemPlug 'n Power CompatibleRadio Shack Central 1000 - Cat. No. 49-2575New Old Stock - Personal "Call for Help" Pendant Lets "home-alone" individuals call for help when they can't get to a phone Automatically dials the monitoring service when you press the pendant button Flashes house lights to attract attention when used with optional lamp modules Turn lights/appliances on and off with an optional hand-held remote Water-resistant pendant Quick easy installation - no wires to run, no tools needed - Just plug it in and complete the monitoring service agreement Includes:Personal emergency dialer console Call for help pendant Phone cord Duplex modular connector Monitoring service application form (monitoring service fee extra)Requires 9V battery (Not included)