Smoke Detector Hardwired Photoelectric Smoke Alarm - Interconnected

In this review of the Smoke Detector Hardwired photoelectric alarm, the bottom line is practical: this kit is best for homeowners who want a simple, reliable hardwired smoke alarm system with battery backup and clear status lights. The reviewer found the unit's hardwired interconnection and included 9V lithium battery make it a sensible choice for maintaining protection during power outages, while the photoelectric sensor detects smoldering fires quickly. It is not a premium smart alarm, but it delivers straightforward, longterm coverage for rooms and larger houses where multiple units must sound together.

Key Features

• AC 120V with 9V battery backup: The alarm operates on house power and includes a 9V lithium battery so the device keeps protecting your home during outages.
• Photoelectric sensing: The photoelectric sensor is tuned to detect smoldering smoke early, giving occupants more time to respond to slowburn fires.
• Wired interconnection: Up to 12 interconnected alarms will sound together when one unit detects smoke, helping alert people across a larger house.
• Loud alarm signal: The unit produces a loud >85dB alarm tone so sleeping family members are more likely to wake and respond during an emergency.
• Test and silence button: A weekly test is easy to perform and the silence function mutes nuisance alarms briefly while you clear smoke or dust.
• LED status lights: A green LED indicates normal operation and a red LED signals alarm or warning states for visible confirmation.

Who It's For

This smoke alarm is suited to homeowners, landlords, and contractors who need a straightforward, codestyle hardwired alarm with battery backup and interoperable wiring across multiple rooms. It works well in bedrooms, hallways and common areas where a loud, reliable alert and photoelectric detection are priorities.

Those who want smart home integration, wireless app alerts, or a premium mounting system may want to look elsewhere, as this model focuses on dependable wired performance and basic indicator lights rather than networked features or advanced mounting hardware.

Pros & Cons

Pros

• Easy installation and clear operation make initial setup straightforward for installers and DIYers.
• Included 9V lithium battery and automatic lowbattery/error notifications improve continuous reliability.
• Photoelectric sensor and loud >85dB output provide effective early warning for smoldering fires.
• Wired interconnection across up to 12 devices adds coordinated safety for larger homes.

Cons

• Mounting hardware design received mixed feedback and may require extra care for a secure fit in some ceilings.
• Compatibility for interconnection was mixed in a few reports, so installers should verify wiring and configuration before final placement.

Specifications

Power	AC 120V with 9V lithium battery backup
Sensor Type	Photoelectric smoke sensor
Interconnection	Wired interconnection up to 12 devices
Alarm Volume	Greater than 85dB
LED Indicators	Green for normal, red for alarm/warning
Expected Life	Designed to last 10 years

Our Verdict

The Smoke Detector Hardwired photoelectric alarm is a solid, valuefocused choice for homeowners who need dependable wired protection and battery backup across multiple rooms. Its photoelectric detection, loud alarm and interconnect capability give sensible coverage for larger houses, though installers should check mounting fit and wiring compatibility before finishing installation.

Frequently Asked Questions

Does the alarm work during a power outage?
Yes, the unit includes a 9V lithium battery backup so it continues to operate if AC power is lost.

How many alarms can be interconnected?
Up to 12 devices can be wired together so one triggered alarm causes all interconnected units to sound.

Is this alarm type good for smoldering fires?
Yes, the photoelectric sensor is designed to detect smoldering or smoldering smoke earlier than some ionization types.