Rokmount Electronics Advanced Wireless Home Business Security System Burglar Alarm with Auto-Dialer AD10B-1w1m For more details of this model AD10B, please google ROCKMOUNT ELECTRONICS Type: Wireless Digital. No interference. Wireless Range: up to 450FT Zones: 48 zones (32 wireless /8 wired zones, 8 remotes controller zones) Control: panel, keyfobs, remote access via phone Warranty: Free one year warranty and unlimited technical support