Features : * 8 Zones expandable to 64 zones  * 8 partitions  * Supports up to 8 keypads  * 5 fully programmable outputs expandable up to 25 outputs  * Hybrid , zone expanders available for both wired & wireless devices  * 8 Zone plug in expander module , zones 9 to 16 ( code 860-06-X-08PI)  * 8 Bus expander modules , max 6 per system (code 860-06-x-08s)  * 16 detector wireless receiver , max 4 per system (code 860-07-x64-0462)  * 128 user codes  * 1000 event log  * Multi format digital communicator  * Dedicated panic zone  * Dedicated tamper zone  * Dual Power Supply : 750mA auxilliary power  2 Year warranty .     Model : IDS860-1-864-XL      Manufacturer : IDS