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Worn on a belt or In a shirt pocket, the battery- powered Sniffer 103 provides a digital lndlcatlon of oxygen concentration. Audible and visible alarms are trIggered when the oxygen level falls below the alarm setpolnt. A switch on the side of the unit can disable the audible alarm. A red LED flashes and a triangular warning symbol appears on the dIgItal display as visible lndlcatlons of an alarm condltlon. The alarms persists until the oxygen level rises above the alarm setpoInt. |