Patent ID: 8054188

Claim:
A carbon monoxide detector comprising: a sensor configured to detect a presence of carbon monoxide, and generate a signal indicative of the presence of carbon monoxide; a controller in signal communication with the sensor, the controller configured to measure a level of detected carbon monoxide in response to receiving the signal generated by the sensor, the controller further configured to detect a first trouble condition representative of an end-of-life condition of the sensor, and a second trouble condition different from the first trouble condition, wherein the second trouble condition comprises one of a lack or loss of power to the carbon monoxide detector and presence of carbon monoxide; a transmitter mechanism operatively coupled to the controller, the transmitter mechanism configured to transmit, to a remote agent, a first trouble signal indicative of the first trouble condition, and a second trouble signal indicative of the second trouble condition, the first trouble signal being different from the second trouble signal; and an alarm for producing an audible or visual alarm signal indicative of the presence of carbon monoxide.