Part One – Your Nighthawk CO Alarm
Nighthawk’s Unique Features
Digital Display
The continuous digital display shows you the level of carbon monoxide (if any) the unit is sensing. The unit updates this reading every 15 seconds so you can watch levels rise or fall.
Note: If the unit does not sense any CO, the reading is zero (0). In most homes, the unit reads “0” all the time. A reading of “0” is expected under normal conditions, and is good. The blinking dot after the number shows you the unit is operating.
Test/Reset Button
This button has three functions. First, this is the button you press when you test the unit monthly (see page
Peak Level Button
By pressing this button, you can see the peak CO level recorded by the alarm since it was last cleared or unplugged. This Nighthawk feature allows you (or heating contractor or fireman) to see exactly how big a CO problem you have so you can react accordingly. (More on the peak level memory feature on page
Sensor
The sensor is a highly sensitive, electrochemical sensor that is CO- specific to help avoid false alarms. Turn to page
Sounder Alarm
This is the loud 85 decibel pulsing alarm that will sound to alert you to a potential problem. Alarm condition is 4 quick beeps – followed by 5 seconds of silence – followed by 4 quick beeps. Repeat.
Caution: Continuous exposure to this sound level at close range over an extended period of time may cause hearing loss. We rec- ommend you cover the sounder with your finger while testing. More on testing on page
Keyholes
When the alarm is mounted to the wall, these keyholes slide onto the screws in the wall. (See “How to install your alarm on page
Pull-Out Transformer/Adapter
This unique Nighthawk feature enables the alarm to be used as a direct plug unit, a wall mounted unit or a table top unit. More on how this unique feature is used for different application, page
9V Backup Battery
This CO alarm is not battery operated. The 9V battery is to supply a
What Carbon Monoxide Alarms Can and Cannot Do CO alarms are designed to sense unacceptable levels of CO from malfunctioning furnaces, appliances, gas engines or other sources.
CO alarms provide early warning of the presence of carbon monoxide, usually before a healthy adult would experience symptoms.
This early warning is possible, however, only if your Nighthawk CO alarm is located, installed and maintained as described in this user’s guide.
This CO alarm is designed to act as a continuous monitor, it is not designed for use as a
CO alarms have limitations. Like any other electronic device, CO alarms are not
CO alarms have a limited operational life. You must test your CO alarm monthly, because it could fail to operate at any time. If your CO alarm fails to test properly, or if its
CO alarms will not work without power. This CO alarm requires a continuous supply of electric power.
CO alarms can only sense CO that reaches the unit’s sensor. Carbon monoxide may be present in other areas without reach- ing the alarm. The rate at which CO reaches the unit may be affected by doors or other obstructions. In addition, fresh air from a vent or open window or any other source may prevent CO from reaching the sensor. Please observe cautions on page
CO could be present on one level of the home and not reach a CO alarm installed on a different level. For example, CO in the basement may not reach an alarm on the second level, near the bedrooms. For this reason, we recommend you provide com- plete coverage by placing a CO alarm on every level of the home.
CO alarms are not smoke alarms. CO alarms do not sense smoke or fire. For early warning of fire you must install smoke alarms, even though carbon monoxide can be generated by a fire.
CO alarms should not be used to detect the presence of natural gas (methane), propane, butane, or other combustible fuels.
CO alarms are not a substitute for property, disability, life or other insurance of any kind. Appropriate insurance coverage is your responsibility. Consult your insurance agent.
