Check the listing for details. Skylink Total Protection Alarm System With Dialer And Additional Accessories. Condition: Used. Listed at 179.99 USD. Skylink Total Protection Alarm System With Dialer And Additional Accessories. This system was in full working order. It was just uninstalled in February of 2023. Since accessories are still new in box and were not being used, others were. System worked fine. Store closed and we are liquidating this unit. We used it ourselves as we were liquidating the location and it worked fine for us. No monthly fees to pay. Comes with door and window sensors, motion sensors and includes the dialer to dial multiple numbers in case of a security breach. Please take a look at pictures, what you see is what is included. Everything works as far as we know. Some accessories may need batteries and some double sided tape for installation (common 9 volt and a23 batteries are what are used). This item is sold as is used without warranty but as stated, it was being used and working fine when we removed it. Installation/removal is very easy to do.