Smoke Detector Hardwired Interconnected 4-Pack - Backup Battery

In this review the Smoke Detector Hardwired Interconnected 4-Pack is examined for homeowners who want a wired smoke alarm system with battery backup and simple interconnect capability. The biggest reason to consider these units is the ability to interconnect up to 12 alarms so that when one senses smoke the entire set sounds together, creating a true household alert network. The reviewer found these units useful as direct replacements for older wired alarms and appreciated the included DC 9V battery backup and the easy test/mute function.

Key Features

• Hardwired interconnection: Can link up to 12 alarms so a single detection triggers every unit for whole-house notification.
• 9V battery backup: Includes DC 9V battery to keep detectors functioning during power outages and sends low battery alerts when replacement is needed.
• Test/mute button: One-touch test and silence controls will test or mute the entire interconnected system for convenient maintenance.
• Photoelectric sensor: Uses advanced photoelectric technology for quicker, more accurate detection of smoldering fires and smoke particles.
• Audible alarm: Produces over 85 decibels to provide a loud warning aimed at waking occupants and drawing attention.
• Simple installation: AC connector and signal wiring are straightforward for replacement installs when wired connections are present.

Who It's For

Homeowners or renters who already have existing hardwired smoke alarm wiring and want a modern, photoelectric replacement with battery backup will find these detectors a practical option. The interconnect feature is especially useful for multi-room homes, basements, and multi-level properties where coordinated alerts increase safety.

Those without existing wiring, or buyers who expect every unit to include long length interconnect cables out of the box, should check their installation needs first; a few customers reported variations in supplied wiring and the screw/hole design that may require minor adjustments or additional parts.

Pros & Cons

Pros

• Interconnects up to 12 units for whole-house alerting, improving household safety.
• Battery backup ensures continued operation during power failures and provides low battery reminders.
• Photoelectric sensing offers dependable detection of smoldering fires and reduced false alarms to cooking.
• Test/mute button and LED status lights make routine checks and temporary silencing simple.

Cons

• Some users reported mixed results with supplied wiring and screw hole design, so installation may require checking parts before starting.
• Reports of inconsistent sound output for a minority of units mean double-checking each alarm after installation is advisable.

Specifications

Brand	Putogesafe
Connection	Hardwired with interconnect up to 12 alarms
Backup Power	DC 9V battery included
Sensor Type	Photoelectric smoke sensor
Alarm Volume	More than 85 decibels
Package Contents	4 detectors, dust cover, hard wiring, manual, 9V battery, screw set

Our Verdict

These hardwired, interconnected smoke detectors are a solid value for homeowners replacing wired alarms who want reliable photoelectric detection and battery backup. They deliver the key safety benefit of synchronized alerts across multiple rooms, simple testing/muting, and decent build quality for the price, though installers should confirm wiring and mounting fit before completing the job.

Frequently Asked Questions

Can these alarms be interconnected together?
Yes, the system supports interconnection of up to 12 alarms so one triggered unit sets off the entire network.

Do they work during power outages?
Yes, each unit includes a DC 9V battery backup so alarms continue to operate if mains power is lost.

Is installation difficult for a typical homeowner?
Installation is straightforward when existing hardwired connections are present, but some buyers reported needing to confirm supplied wiring and screw hole alignment before installation.