GS509A Smoke Detector

The GS509A smoke alarm uses photoelectric technology to detect smoke and fire, and has been tested to meet the UL217 standard. With advanced electric components, this smoke alarm is designed to reduce false alarms, providing accurate protection to you and your family.

  • 10-Years Product Life: Comes with 1-year 9V battery, 10-year product life
  • Photoelectric Technology: Using photoelectric technology, the detection of slow smoldering fires is more sensitive
  • Test/Mute Button: Test the mute button without affecting your rest
  • Safety Certification: Passed NFPA standard 72, quality and safety are guaranteed
  • Easy to Install: Comes with a magnet set can be easily installed with a bracket.
Sale price$16.99 USD

Quantity: 1-Pack


Model Number


Sensor Type


Comply with Standard

Smoke Alarms [UL 217:2020 Ed.9+R:07Oct2022] 
Standard for Smoke Alarms [CAN/ULC S531:2019 Ed.4]

Product Life

10 Years

Supply Voltage