Security Codes

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General Information

For additional security, users other than you who do not need to know your code can be assigned different security codes. These secondary users are identified by "user numbers" when their codes are assigned. You can assign up to 6 user codes (2-digit user numbers 03-08). Note that the master (primary) user of the system is the only one who can assign codes to secondary users, and is designated user no. 02; user no. 01 is the installer’s code.

All codes can be used interchangeably when performing system functions (a system armed with one user's code can be disarmed by another user's code), with the exception of the Babysitter Code described below.

Babysitter Code (User 07): This code can be used to arm the system, but cannot disarm the system unless the system was armed with this code. This code is typically assigned to someone (such as a babysitter) who needs to arm/disarm the system only at certain times. The Babysitter Code is assigned to User 07.

Duress Code (User 08): This feature is intended for use when you are forced to disarm or arm the system under threat. When used, the system will act normally, but can silently notify the alarm monitoring company of your situation, if that service has been provided. Duress Code is assigned to User 08.

The Duress Code is useful only when the system is connected to an alarm monitoring company.

To Add/Delete a User or Change a User's Code

Changing the Master Code

Follow the procedure for changing a user's code, but enter User No. 02 and enter the new code twice.

IMPORTANT: Temporary users of the system (e.g., babysitters, cleaning staff) should not be shown how to use any system function they do not need to know, such as bypassing protection zones for example.

Sequential key depressions for all steps in a procedure must be made within 2 seconds of one another, or else the entire entry is aborted and must be repeated from its beginning.

Add a user code:

Delete a user code:

Master Code

CODE Key + user number (03-08) + user’s code

+ CODE Key + user number (03-08)

Wait (about 3 seconds) until the keypad beeps once before pressing any other key. The code is automatically deleted.

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N8891-1 specifications

The First Alert N8891-1 is a technologically advanced smoke and carbon monoxide (CO) alarm that exemplifies safety and efficiency for modern homes. Designed to provide comprehensive protection against two of the most hazardous threats in residential environments, this device is engineered with an array of features that enhance its functionality and user-friendliness.

One of the standout features of the N8891-1 is its dual-sensor technology. This method combines both photoelectric and ionization sensing capabilities, allowing the alarm to effectively detect a wide range of fire types. Photoelectric sensors are particularly effective for smoldering fires, which may produce more smoke and take longer to ignite, while ionization sensors quickly respond to flaming fires. This combination ensures that users receive timely warnings, enhancing safety and increasing the chances of escape.

The First Alert N8891-1 is also equipped with a unique, easy-to-read digital display that provides real-time data about CO levels in the home. This feature is crucial, as carbon monoxide is an odorless and colorless gas that can be extremely harmful, if not fatal. The display not only indicates the current CO level but also provides users with alerts in case of an emergency or when the battery is low.

In addition to its advanced sensing capabilities, the N8891-1 includes a 10-year sealed battery, eliminating the need for frequent battery replacements and ensuring long-lasting performance. This feature provides peace of mind, knowing that the device will remain operational without the hassle of upkeep.

Another important characteristic is the alarm’s ability to interlink with other compatible smoke alarms in the household. When one alarm detects smoke or CO, all linked units will sound off, creating a synchronized response that further enhances safety throughout the home.

Furthermore, the First Alert N8891-1 is designed with user convenience in mind, featuring a single button for both testing the alarm and silencing false alarms, which can often occur when cooking or from other non-threatening sources.

Overall, the First Alert N8891-1 stands out as a reliable and sophisticated choice for those seeking to enhance their home’s safety features with a dual-function smoke and carbon monoxide detector that seamlessly combines advanced technology, ease of use, and sustainability.

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