• NightHawk Plug In/Battery Digital CO Alarm
• Mfr. model number - KN-COP-DP-LS
• Plug-in unit with battery backup
• Electrochemical sensor
• Digital display shows CO level and updates every 15 seconds
• Emits loud warning signal when dangerous levels of CO are detected
• Green LED shows power on/normal operation
• Red LED for high CO level sensed
• Peak level button displays peak CO recorded since alarm was last reset
• Tamper Resist feature alerts if unit has been unplugged or come loose from outlet
• Test/Reset button
• End of Life alarm alerts you to replace unit after recommended seven years of operation
• Requires (1) 9V battery for backup (included)
• Weight: Approximately .69 pounds
• Shipping Dimensions: Approximately 12 x 8 x 3 inches.