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The OFF key is used to disarm the system, silence alarm and trouble sounds, and clear alarm memories.

IMPORTANT: If you return and the main burglary sounder is on, DO NOT ENTER, but CONTACT THE POLICE from a nearby safe location.

If you return after an alarm has occurred and the main sounder has shut itself off, the keypad will

beep rapidly upon your entering, indicating that an alarm has occurred during your absence.

LEAVE AT ONCE, and CONTACT THE POLICE from a nearby safe location.

Alpha6)%(=-7%61)(Display:83%61

(Security Code) OFF
The “READY” indicator light will be lit if all zones
are secure, and the keypad will emit a single tone to
are secure, and the keypad will emit a single tone to
confirm that the system is disarmed.	Fixed-Word Display: READY
NOTE: If entry delay has started (you’ve opened the
entry door), you do not need to press the OFF key;
simply enter your security code.

2.To Silence a Burglary Alarm and Clear a Memory of Alarm

Enter your security code. This disarms the system and silences the alarm (or warning tones of a Memory of Alarm).

Note the zone in alarm on the keypad display, and make that zone intact (close door, window, etc.). Now enter the security code plus OFF to clear the keypad’s Memory of Alarm display.

3.To Silence a Fire Alarm and Clear Memory of Alarm

Simply press the OFF key to silence the alarm. Then enter the security code plus OFF sequence to clear the keypad's Memory of Alarm display. See the Fire Alarm System section.

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K5309-5V2 specifications

The First Alert K5309-5V2 is an advanced smoke and carbon monoxide detector that offers essential protection for homes and businesses. This device is designed to enhance safety by detecting smoke and harmful carbon monoxide gases promptly, ensuring timely alerts to prevent emergencies.

One of the standout features of the K5309-5V2 is its clever dual sensor technology. This model utilizes both photoelectric and ionization sensors, which means it can effectively detect different types of fires. Photoelectric sensors are particularly efficient at identifying smoldering fires that produce more smoke, while ionization sensors excel at detecting fast-flaming fires. This combination significantly increases the likelihood of early detection, contributing to quicker response times and reducing the risks associated with fire incidents.

The K5309-5V2 also employs an advanced carbon monoxide detection system. Carbon monoxide is a colorless, odorless gas that can be extremely dangerous, and the K5309-5V2 provides precise detection to alert users in case of an elevated CO level. With a loud 85-decibel alarm, users are ensured that they will hear the alarm even from a distance.

Another notable characteristic of this detector is its easy installation process. The K5309-5V2 can be mounted on walls or ceilings and comes with an easy-to-understand user manual that simplifies setup. The device is powered by batteries, ensuring it remains operational even during power outages.

Moreover, First Alert has incorporated a convenient test and silence button that allows users to routinely test the functionality of the alarm and silence false alarms without removing the battery.

The design of the K5309-5V2 is another merit, featuring a sleek and compact profile that blends well with various home interiors. It is also equipped with a battery- saving mode that extends the life of the battery, minimizing the frequency of replacements.

Overall, the First Alert K5309-5V2 smoke and carbon monoxide detector presents a reliable, dual-sensor solution that prioritizes safety and convenience. Its combination of innovative technologies, ease of use, and effective alarm response makes it a valuable addition to any safety system, helping protect what matters most in any environment.