SITERWELL Smoke Detector 9V Battery Operated with Photoelectric Sensor & Low-Battery Warning, Easy to Install Fire Detectors, UL217 10th Edition Listed,GS509A, 1 Pack — Open-Box, 19% Off

Name: SITERWELL Smoke Detector 9V Battery Operated with Photoelectric Sensor & Low-Battery Warning, Easy to Install Fire Detectors, UL217 10th Edition Listed,GS509A, 1 Pack
Brand: SITERWELL
SKU: awhd-us-b0gys3cjgj
Price: 15.75 USD
Availability: InStock

Brand: SITERWELL

Condition: Used - VeryGood

$15⁷⁵

$19⁵²

-19% Save $3⁷⁷

Updated: 17 days ago

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Description

【UL217-10th Certified】The GS509A photoelectric smoke detector meets UL217-10th Edition standards. Its advanced sensor is highly sensitive to slow-smoldering fires—giving you early detection when every second counts.

【10-Year Product Lifespan】Engineered for 10-year long-term reliability, this battery-powered smoke alarm operates on a standard 9V battery with a 1-year replacement cycle. No frequent battery changes or complicated maintenance—one simple setup brings continuous home fire safety.

【Smart MCU Design】Built with a precision photoelectric chamber, high-sensitivity IR LED and photodiode, this battery fire alarm delivers fast smoke response. The intelligent MCU microprocessor supports automatic sensitivity calibration and compensation, maintaining stable detection performance even after years of use.

【85dB Loud Alarm & Multi Safety Protections】Emits an >85dB(A) loud alarm at 3 meters, loud enough to alert you through large rooms or wake deep sleepers. Features low battery reminder, convenient hush function for false alarms, and fault code warning to ensure you’re always aware of its working status.

【Easy Installation】This battery-operated alarm mounts easily on any wall or ceiling. The upgraded magnetic design provides a secure fit—no drilling, no mess, no hassle. Ideal for houses, apartments, senior-friendly homes, and rentals

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Product Details

SKU:: awhd-us-b0gys3cjgj
Model:: GS509A-EAN
Country:: US
ASIN:: B0GYS3CJGJ

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $4 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for SITERWELL products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.