Patent ID: 7319403

Claim:
A wireless carbon monoxide alarm device, comprising: a control circuit having a delay feature; a sensor coupled to the control circuit, the sensor configured to generate a alarm signal upon detecting at least a threshold level of carbon monoxide; a memory having a stored emergency identification information to indicate at least one of a carbon monoxide emergency, a fire emergency, and a delay in a 911 emergency call; a cellular transceiver in communication with the memory and the control circuit, the cellular transceiver configured to automatically transmit the 911 emergency call comprising the emergency identification information in response to the alarm signal; a multimode audio alarm coupled to the control circuit, wherein the multimode audio alarm is configured to at least emit a sound comprising intermittent tones to indicate the temporary delay in the transmission of the 911 emergency call; a wireless enhanced 911 location system in communication with the cellular transceiver, wherein the wireless enhanced 911 location system is configured to receive the 911 emergency call, determine a geographic location of the wireless carbon monoxide alarm, combine the geographic location and the emergency identification information in the 911 emergency call, and route the 911 emergency call to a public safety answering point; wherein the public safety answering point dispatches public safety personnel to the geographic location of the wireless carbon monoxide alarm.