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Price: $19.52
(as of Aug 31, 2026 15:28:25 UTC – Details)
From the brand
SITERWELL is the only company in Asia with a laboratory capable of UL fire testing for both American and EU fire testing for European requirements. We spent 15 million US dollars to clone the United States UL laboratory, which perfectly covers the latest European, Australian, Canadian and American standards.
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【10-Year Product Life】The smoke detector has 1-year 9V battery backup. This smoke alarm can be used for ten years with continuous battery replacement. Working smoke detector cut the risk of dying in a home fire by 50% while a home fire starts every 83 seconds! The faster you realize a fire warning, the more time to escape from the fire
【Photoelectric Technology】The GS509A is a Photoelectric Sensor Smoke Detector. The photoelectric technology, it is more sensitive in detecting slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames
【Test/Mute Button】The fire alarms smoke detectors is designed to test the normal operation of the product by pressing the test button. Weekly testing is required. The product is designed to be silent and not disturb your rest
【Humanized Design】Loud>85dB makes everyone in the house can hear the alarm clearly when the smoke alarm is chirping. If low battery there will be a signal alarm, which informs you to change a new battery
【Easy Installation&High Quality】The fire detector can be easily installed through the mounting bracket. It can be easily mounted on the wall or ceiling. this equipment is installed in accordance with the NFPA standard 72, so you can rest assured and absolutely trust our products
Customers find this smoke detector to be an excellent alarm that’s easy to install and mount, with a small, compact design and a 10-year battery life. They consider it good value for money. The alarm receives mixed feedback about its loudness, with some finding it fairly loud while others note it starts chirping. The magnetic attachment feature also gets mixed reviews, with several customers mentioning it doesn’t come with the magnetic piece.
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