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Keep your home or business safe by testing your smoke detectors regularly with this Smoke Detector Tester from Sdi. Designed for residential or commercial detectors, this handheld aerosol provides an easy-to-use functional test that's user-friendly and reliable. The 12 in x 10 in size makes it portable and easy to store, while the 2.6 oz canister ensures you have enough product for multiple tests. It also meets industry standards and comes from a veteran-owned business, so you know you're getting a high-quality product backed by years of expertise. Use this smoke detector tester to ensure your safety and peace of mind in any situation.