The Kidde KN-COB-DP2 CO alarm protects against the “silent killer” carbon monoxide. It fits in either horizontal or vertical plugs with a battery for backup. It also features event memory, low-battery hush, and tamper-resistance.
Power Source: 120 VAC, 60 Hz w/ 2 AA battery backup
Audio Alarm: 85 dB at 10 ft
Size: 4 1/2″H x 2 3/4″W x 1 1/2″D
Weight: 1/2 lb
Warranty: 10-year limited