65 Series RV Surface Mount Carbon Monoxide AlarmFeatures:Designed for the Rugged RV Environment - Ideal for Class A Motor homes, Class B Van Campers, Class C Mini-Motor Homes, Travel Trailers, Fifth Wheels & TruckAdvanced Technology - Alarm Mute button silences alarm while RV is ventilated. Rapid recovery sensor resets when silenced or reactivates alarm if dangerous levels of CO remainMemory Scan™ - Retains the CO level that activated the alarm. After ventilation it is impossible to know what the CO level was unless your alarm has memoryMicro Current Technology - Saves battery powerTwo Level Alarm - Low and High.Reliable - 12 Volt power means no missing or dead batteries to replace.Loud 85 dB AlarmApproved - Meets RVIA/NFPA requirementsSpecifications:Certified to CSA Std 6.19-01 (R2006)*Conforms To ANSI / UL STD 2034*Alarm Point: 400 PPM 4-15 MinutesLow voltage power warning at 7VPower Supply and Current Draw: 108 mA @ 12 VDCOperational Range: 12 Volts +/-15%Low voltage power warning at 7 VoltsOperating Temperature: -40°F to +158°FCase Size: 6.5'W x 3.5'H x 1.25'D* Testing Laboratory: ETL/Intertek