how long does the batter last

Batter usally last a couple of days or until you bake it. As for the batteries ho they should last a few years.

will this work with a 2gig system?

I actually hadn't tried it. According to one of Alarm Grid's videos on YouTube I believe it will work though.

Can Honeywell products compatible with Vivant home security ?

Yes, I worked for Vivint, all Vivint panels are backwards compatible and will accept most Honeywell equipment,

can this smoke detector also be hard wired?

Short answer; yes. Long answer; you'll need an additional power converter to give you 3 volts DC. Then connect the two wires to the two battery tabs and then mount. So for example, get a 120 volt to 3 volt DC wall power adapter and connect the wires. Anything with a battery can be converted into hardwired, you just need to provide the needed voltage from an external power source.

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🔥 Safety Meets Innovation: Your Home's Silent Guardian!

DUAL LED INDICATORS - Instantly identify alarm or trouble conditions with clear green and red status lights.
UL APPROVED FOR ALL - Meets rigorous standards for both residential and commercial applications, ensuring peace of mind.
VERSATILE INSTALLATION - Easily mount on uneven surfaces with a sturdy base designed for hassle-free setup.
SMART MAINTENANCE ALERTS - Receive timely notifications for cleaning, ensuring your detector is always in top shape.
STAY AHEAD OF EMERGENCIES - With improved RF field strength, enjoy a wider detection range without the hassle of repeaters.

The Honeywell 5808W3 Wireless Photoelectric Smoke/Heat Detector combines advanced technology with user-friendly features, including robust RF field strength, smart maintenance alerts, and versatile installation options. With dual LED indicators and UL approval for both residential and commercial use, this detector ensures your safety is always a priority.

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