GS509A-2NCDR Photoelectric Smoke Detector with 9V Battery

GS509A-2NCDR: Smoke detection with simple screw mounting The SITERWELL GS509A-2NCDR is a standalone photoelectric smoke alarm that mounts with the supplied mounting plate, screws and wall plugs, making it a practical choice for straightforward home installation. Its replaceable-battery design keeps routine maintenance accessible, with single and multipack options for planning your alarm locations. Key features Photoelectric smoke sensing: Detects smoke using an optical sensor. Screw mounting: Fixes to a ceiling or wall with the supplied mounting plate, screws and wall plugs, following the supplied instructions. Replaceable battery: Maintain power with the battery type specified for your unit. 10-year product life: Product service life is separate from battery life; batteries need replacement during use. Test button: Check operation as part of your regular alarm maintenance. Audible alarm: Rated at ≥85 dB(A) at 10 feet (3.05 m), as stated in the product manual. Low-battery warning: A signal reminds you when the battery needs attention. Choose your home safety setup For separate carbon monoxide detection, add the Plug-in CO alarm; each device operates independently. Prefer a smoke alarm with a built-in battery designed for 10 years? Compare the GS525A 10-year battery smoke alarm. For setup, placement and routine testing, follow the instructions supplied with your alarm. Browse our product user manuals for model-specific guidance. For the difference between photoelectric and ionization sensing, see our guide. Protect Your Delivery For extra protection against eligible physical loss, external damage or shortage while your order is in transit—and eligible theft after delivery within the coverage term—consider adding optional Shipsurance shipping insurance when it is offered at checkout. If you purchased this coverage and a shipping-related issue occurs, review the coverage rules and contact SureCircle first to file a claim or check claim status. Product setup, technical support, product defects and manufacturer-warranty questions remain with SITERWELL. Customer Service U.S. Customer Service Hotline: +1 800-710-7321 Monday–Friday, 9:00 AM–6:00 PM (EST)