Gentex S Series Smoke Alarm
Best professional grade safety solution for discerning homeowners.
This hardwired detector prioritizes reliability by pairing advanced photoelectric sensing with a battery backup, ensuring you’re covered even when the grid goes down. It’s a no-nonsense safety essential that trades fancy smart-home connectivity for consistent, bug-resistant performance and a piercing alarm that demands immediate attention.
$79.99
at
eBay
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Who it's for
- Homeowners seeking professional-level fire protection and fewer false alarms
- Families living in multi-story homes requiring synchronized alerts
- Property managers looking for long-lasting safety equipment for rental units
Who should skip it
- Renters or DIY novices who prefer simple battery-operated devices
- Design-conscious homeowners prioritizing sleek or hidden safety hardware
- Budget-focused shoppers looking for the most affordable entry-level protection
Performance breakdown
Detection Accuracy
Photoelectric sensor excels at identifying slow-burning, smoldering fire hazards.
Reliability
Hardwired connection paired with battery backup ensures constant, uninterrupted protection.
Alert Clarity
Temporal 3 signal provides a distinct, unmistakable warning during emergencies.
Maintenance Ease
Simple push-button testing makes routine safety checks quick and effortless.
System Integration
Hardwired interconnectivity allows seamless communication across your entire home system.
Build Durability
Insect-screened design prevents internal contamination and extends the device's lifespan.
Key Specs
Detection Technology
Photoelectric
Power Source
Hardwired with 9V battery backup
Connectivity Type
Hardwired Interconnected
Interconnectivity Type
Hardwired Interconnect
Alarm Sound Level
85 dBA
Alert Type
Siren / Beep
Alarm Type
Siren
Battery Type
9V
Dimensions
139.7 x 139.7 x 44.45 mm
Weight
526.17 grams
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