--- product_id: 753920750 title: "SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack" brand: "siterwell" price: "$102.84" currency: USD in_stock: true reviews_count: 5 category: "Siterwell" url: https://www.desertcart.us/products/753920750-siterwell-smoke-detector-smoke-detector-10-year-battery-with-photoelectric store_origin: US region: United States of America --- # 10-year long-life battery Photoelectric sensor for early smolder detection Magnet & screws for versatile mounting SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack **Brand:** siterwell **Price:** $102.84 **Availability:** ✅ In Stock ## Summary > 🔥 Stay ahead of danger with 10 years of silent, smart protection! ## Quick Answers - **What is this?** SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack by siterwell - **How much does it cost?** $102.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/753920750-siterwell-smoke-detector-smoke-detector-10-year-battery-with-photoelectric) ## Best For - siterwell enthusiasts ## Why This Product - Trusted siterwell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Smoke Detection:** Photoelectric sensor targets smoldering fires, reducing false alarms from burnt toast or kitchen mishaps. - • **Compact & Sleek Design:** Modern rounded profile fits discreetly in any room, blending safety with style. - • **UL217 Certified Safety:** Meets rigorous UL217 standards, ensuring trusted, professional-grade fire protection for your home. - • **Effortless Installation:** Magnet and screws included for quick, flexible wall or ceiling mounting—no hassle, no tools fuss. - • **Decade-Long Peace of Mind:** Built-in 10-year battery means no annoying replacements or downtime for a whole decade. ## Overview The SITERWELL Smoke Detector GS525A combines a 10-year battery life with a photoelectric sensor designed to detect smoldering fires early, minimizing false alarms. Its versatile mounting options include magnets and screws for easy installation on walls or ceilings. UL217 certified and compactly designed, it offers reliable, long-term fire safety tailored for modern homes. ## Description 【Magnet and Screws Included】 Magnets and screws are included for easy mounting on the wall or ceiling. You can choose the installation method you need Review: Handyman - These are smaller than the older ones. Buyer beware because you might have to paint the old stained area. Otherwise easy to install and work great. Review: Working smoke alarm - I thought to myself after installing my smoke alarm, "How do i know its not defective? Even if it beeps when i press the test button, there could still technically be a problem with the sensor." So i tried testing it physically near a small fire (outdoors). When i tested a dual ionization & photoelectric sensor the same way, it went off immediately. When i used this one there was about a 30 second delay before it went off. That's to be expected given a photoelectric smoke alarm's main use is to detect smouldering fires that are yet to have an open flame and tend to have a slight delay compared to ionization alarms outside of this context. These are more ideal for kitchens that are likely to have the occasional burnt meal as you don't want the alarm going off unnecessarily. At the very least i was able to confirm the alarm works as expected of the type of smoke alarm. ## Features - 【Magnet and Screws Included】 Magnets and screws are included for easy mounting on the wall or ceiling. You can choose the installation method you need ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CQQGLJZ3 | | Alarm | Audible | | Best Sellers Rank | #22,325 in Home Improvement ( See Top 100 in Home Improvement ) #82 in Fire Safety | | Brand | SITERWELL | | Customer Reviews | 4.3 out of 5 stars 88 Reviews | | Item Weight | 181 g | | Model Number | GS525A | | Power Source | Battery Powered | | Product Style | Rounded design | | Style | Rounded design | | UPC | 798977876116 | ## Product Details - **Brand:** SITERWELL - **Style:** Rounded design - **Power Source:** Battery Powered - **Item Weight:** 0.4 Pounds - **Alarm:** Audible - **UPC:** 798977876116 ## Images ![SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack - Image 1](https://m.media-amazon.com/images/I/61Nm8ShB4GL.jpg) ![SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack - Image 2](https://m.media-amazon.com/images/I/71B6L8jSngL.jpg) ![SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack - Image 3](https://m.media-amazon.com/images/I/71W760qRKgL.jpg) ![SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack - Image 4](https://m.media-amazon.com/images/I/71tdkWoqUrL.jpg) ![SITERWELL Smoke Detector, Smoke Detector, 10 Year Battery with Photoelectric Sensor, Fire Alarm, Low Battery for Home and Bedroom, UL217-9 # GS525A, 1 Pack - Image 5](https://m.media-amazon.com/images/I/71dTri0oE1L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Handyman *by A***R on 20 June 2026* These are smaller than the older ones. Buyer beware because you might have to paint the old stained area. Otherwise easy to install and work great. ### ⭐⭐⭐⭐⭐ Working smoke alarm *by C***. on 24 June 2026* I thought to myself after installing my smoke alarm, "How do i know its not defective? Even if it beeps when i press the test button, there could still technically be a problem with the sensor." So i tried testing it physically near a small fire (outdoors). When i tested a dual ionization & photoelectric sensor the same way, it went off immediately. When i used this one there was about a 30 second delay before it went off. That's to be expected given a photoelectric smoke alarm's main use is to detect smouldering fires that are yet to have an open flame and tend to have a slight delay compared to ionization alarms outside of this context. These are more ideal for kitchens that are likely to have the occasional burnt meal as you don't want the alarm going off unnecessarily. At the very least i was able to confirm the alarm works as expected of the type of smoke alarm. ### ⭐⭐⭐⭐⭐ Great home addition *by M***. on 21 May 2026* Very easy to install. Great product. Love the 10 year life and the price. A must need for all households ## Frequently Bought Together - SITERWELL Smoke Detector, Smoke Detector 10 Year Battery with Photoelectric Sensor, Fire Alarm with Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 1 Pack - Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable - X-Sense Smoke Alarm, 10-Year Battery Fire Alarm Smoke Detector with LED Indicator & Silence Button, SD2J0AX --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/753920750-siterwell-smoke-detector-smoke-detector-10-year-battery-with-photoelectric](https://www.desertcart.us/products/753920750-siterwell-smoke-detector-smoke-detector-10-year-battery-with-photoelectric) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-11*