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•Used when you want to arm the system with persons staying inside (or if you have pets that are moving throughout the premises).

•The perimeter sensors are armed, but interior sensors are left disarmed.

•Exit delay begins (you can leave through the entry/exit door, if desired).

•An alarm sounds if any protected window or non-entry/exit door is opened.

•You may otherwise move freely within the premises.

•Persons entering later can enter through an entry/exit door, but they must disarm the system within the entry delay period to avoid sounding an alarm.

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•Use Night-Stay mode to provide increased security while staying inside.

•Arms same as Stay mode, but also arms pre-selected interior sensors (programmed by your installer), while other interior sensors are left disarmed.

•Persons entering later can use entry/exit doors but they must disarm the system and must not violate any of the programmed interior zones to avoid sounding an alarm.

•IMPORTANT: When Night-Stay mode is on, the selected interior zones are armed and cause an alarm if anyone enters those areas (e.g., waking in the middle of the night). To avoid sounding an alarm, you must disarm the system before any activity takes place in those interior zones.

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•Used when staying inside and do not expect anyone to use an entry/exit door.

•Arms same as Stay mode.

•An alarm sounds immediately if any protected perimeter window or any door is opened, including entry/exit doors.

•IMPORTANT: Arming in this mode greatly increases the chance of false alarms. Use extreme care in selecting this mode of arming.

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•Used when nobody will be staying inside (including pets).

•The entire system (interior and perimeter) is armed.

•Exit delay begins letting you leave through the entry/exit door.

•An alarm sounds if a protected window or any door is opened, or if any movement is detected inside your premises.

•You can reenter through an entry/exit door, but you must disarm the system within the entry delay period to avoid sounding an alarm.

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•Used when leaving the premises for extended periods (e.g., vacation).

•Arms same as Away mode, but entry delay is off.

•An alarm sounds same as Away mode, and sounds upon opening entry/exit doors.

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First Alert K5309-5V2 manual $UPLQJWKH6\VWHP
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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.
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