Patent ID: 7714700

Claim:
An ambient condition detector comprising: control electronics; a least one ambient condition sensor coupled to the control electronics; at least one audio output transducer coupled to the control electronics; an audio output pitch selector coupled to the control electronics whereby a user can interface with the audio output pitch selector to choose at least one tone pitch from a plurality of distinctly different tone pitches, whereby the audio output pitch selector is activated by a user to select a desired alarm tone pitch during a set-up mode of the ambient condition detector as the control electronics plays through a menu of a plurality of pre-programmed tonal patterns so a user can choose which tone pitch within the menu is most desirable; the control electronics signals the at leant one audio output transducer to emit an audible alarm tonal pattern when the ambient condition sensor detects an ambient condition; the audible alarm tonal pattern comprises at least one user-selected tone pitch; and the at least one ambient condition sensor comprises at least one of a smoke sensor, a fire sensor, a, gas sensor, a motion sensor, or a radiation sensor.