Hardwired Interconnected Smoke Detectors with Battery Backup - 6 Pack

In this review of the Hardwired Interconnected Smoke Detectors, the bottom line is simple: this 6-pack is aimed at homeowners replacing old mains-powered alarms who want reliable, house-wide alerts and continued protection during outages. The biggest reason to buy is the combination of a true hardwired interconnect system that links up to 12 units and a 9V battery backup that keeps the alarms operational in a power failure. For anyone updating multiple rooms or replacing decade-old units, these detectors offer practical, modern photoelectric sensing without extra bells.

Key Features

• Hardwired with battery backup: Operates on 120V AC wiring for continuous mains power while a 9V battery backup maintains protection during outages.
• Photoelectric sensing: Uses a photoelectric sensor to detect smoldering fires early, improving warning time for occupants.
• Wired interconnection: Can connect up to 12 devices so when one unit senses smoke the others sound in tandem for whole-house alerts.
• Test and silence button: Weekly testing is simple with the test button, and you can silence nuisance alarms by pressing the button for about 2 seconds.
• Built-in LED indicators: A soft green LED shows normal operation while a red LED signals alarm or warning without being overly bright at night.

Who It's For

This pack is best for homeowners, landlords, and renovators replacing multiple hardwired smoke alarms at once, especially in older homes where existing 120V wiring is present and units need to be interconnected. It is also a sensible choice for families who want continuous coverage during storms or outages thanks to the 9V backup.

It may be less suitable for renters without access to wiring, buyers who need battery-only portable alarms, or those who require wireless interconnectivity rather than hardwired connections. If you need a model with voice alerts or advanced home automation integration, look elsewhere.

Pros & Cons

Pros

• Easy replacement for older hardwired units and praised by buyers for straightforward installation.
• Photoelectric sensor provides accurate detection of smoldering fires and reduces false triggers from cooking.
• Interconnection of up to 12 devices delivers coordinated whole-house alerts for faster evacuation.
• 9V battery backup ensures the alarm remains functional during power outages.

Cons

• Some users report occasional nuisance alarms, so occasional false triggers may occur in certain environments.
• Hardwired interconnect requires wiring access and is not a plug-and-play wireless solution.

Specifications

Model	GS562A
Power	120V AC with 9V battery backup
Sensor type	Photoelectric
Interconnect	Hardwired, up to 12 devices
Alarm loudness	>85dB
Indicators	Green operation LED, red alarm LED (built-in)
Package	6 pack

Our Verdict

The Hardwired Interconnected Smoke Detectors in this 6-pack are a practical, cost-effective choice for homeowners needing reliable, whole-house protection with battery backup. They replace aging mains alarms cleanly, offer trusted photoelectric detection, and the interconnect feature improves safety across multiple rooms. While hardwired installation is required and isolated false alarms are reported, the overall value and continuous protection make this a smart upgrade for most households.

Frequently Asked Questions

Can these alarms run during a power outage?
Yes. They run on 120V AC and include a 9V battery backup that keeps the detector working when mains power is lost.

How many units can be interconnected?
The manufacturer specifies wired interconnection for up to 12 devices so multiple rooms will sound together if one alarm triggers.

How do I silence a nuisance alarm?
Press the test/silence button for about 2 seconds to mute a non-emergency alarm; regular weekly testing is recommended.