Gentex S Series Smoke Alarm
Top Pick
Gentex Corp.

Gentex S Series Smoke Alarm

4.6

Best professional grade safety solution for homeowners seeking long term reliability.

This hardwired detector prioritizes reliability over flashy smart features, using advanced photoelectric sensing to cut down on annoying false alarms. It’s a no-nonsense safety essential that ensures you’re protected even during power outages, though you’ll need to handle the installation yourself to get it fully integrated into your home's system.

$132.99

Out of stock
Detection Technology Photoelectric
Heat
Photoelectric
Connectivity Type Hardwired Interconnected
Hardwired Interconnected
Standalone
Interconnectivity Type Hardwired Interconnect
Hardwired Interconnect
None

Who it's for

  • Homeowners seeking professional-grade fire safety and fewer false alarms
  • Families living in multi-story homes requiring comprehensive coverage
  • Property managers looking for durable, long-term safety solutions

Who should skip it

  • Renters or DIYers wanting a quick, tool-free installation process
  • Design-conscious homeowners preferring minimalist or discreet safety devices
  • Budget-focused shoppers looking for the most affordable entry-level protection

Performance breakdown

Detection Reliability

Photoelectric sensing minimizes false alarms while maintaining high sensitivity to smoke.

Excellent

Power Redundancy

Dual-power design ensures continuous operation even during unexpected electrical grid failures.

Excellent

Installation Complexity

Standard junction box mounting makes hardwired setup straightforward for most homes.

Good

Alert Effectiveness

The 85 dBA horn and temporal pattern provide clear, urgent warnings.

Excellent

Maintenance Ease

Push-button testing and clear end-of-life indicators simplify routine safety checks.

Excellent

System Integration

Hardwired interconnect capability allows alarms to trigger simultaneously throughout the building.

Excellent

Key Specs

Detection Technology

Photoelectric

Power Source

120VAC with 9V battery backup

Connectivity Type

Hardwired Interconnected

Interconnectivity Type

Hardwired Interconnect

Battery Type

9V

Alarm Sound Level

85 dB

Alarm Type

Siren

Alert Type

Siren / Beep

Carbon Monoxide Detection

No

Mounting Type

Junction box

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Gentex S Series Smoke Alarm

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$132.99
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