Patent ID: 8754776

Claim:
A noninvasive monitor for determining measurement values for one or more physiological parameters of a monitored patient, the noninvasive monitor comprising: an input configured to receive from a sensor one or more sensor signals responsive to optical radiation, said sensor including an optical radiation source and one or more detectors housed in a sensor housing configured to position said optical radiation source and said one or more detectors proximate tissue of a patient; and a processor configured to: process a first sensor signal of said one or more sensor signals to determine measurement values for one or more physiological parameters of said patient, said first sensor signal responsive to optical radiation attenuated by said tissue of said patient, process a second sensor signal of said one or more sensor signals to determine an amount of ambient electronic interference proximate said sensor, said second sensor signal responsive to ambient electronic interference proximate said sensor, and output an output signal responsive to said amount of ambient electronic interference to provide at least a visual cue on an analog gauge indicative of said amount of ambient electronic interference.