Provides continuous monitoring of CO levels—even during power outages.\Features\ - 2 AA batteries\ - Electrochemical sensor\ - Includes multiple mounting options: wall or table top\ - 85 dB at 10'\ - 4 1/2"L x 2 3/4" H x 1 1/2"D\ - 8 oz\ - 10-year warranty\ - 1/Each Model Number: KN-COB-B|UOM: EA|Technical Data:|Power Source: 3 AA batteries (included)|Sensor: Electrochemical |Audio Alarm: 85 dB at 10 ft |Size: 4 1/2"L x 2 3/4"H x 1 1/2"D|Weight: 8 oz |Warranty: 5-year limited|Technical Data:|Wall mount or table top