DMP’s wireless systems provide added protection against the threat of carbon monoxide. When enabled in panel programming, the wireless siren annunciates CO alarms with a distinct Temporal 4 cadence to warn individuals on the premises of the potentially life-threatening situation. Fire alarms typically use Temporal 3 cadence, but in the event that a customer’s carbon monoxide detector goes into alarm, DMP’s 1135 wireless siren alerts occupants with a different annunciation pattern so they can more easily identify the emergency. This brings the 1135 siren into compliance with changes to ANSI/UL 985 household fire warning system. All of DMP’s two-way wireless products use 900 MHz frequency-hopping spread-spectrum. This ensures clear and accurate signal transmissions without interference in practically any environment. Furthermore, all 1100 series products offer survey LED capabilities and communicate directly with the 1100 receiver, allowing one person to confirm communication with the receiver or panel.