SD110 - Stand-alone Smoke Detector - 1-Year Battery - White, 2-Pack The Alecto SD110 combines easy installation with proven safety. An 85 dB alarm sounds when smoke is detected, and thanks to its photoelectric sensor, the detector responds quickly and accurately. The detector has a 10-year service life and uses a replaceable 9V battery. https://elecena.pl/product/29885766/sd110-2x-smoke-detector-2-pack 2026-02-27 https://elecena.pl/product/29885766/sd110-2x-smoke-detector-2-pack 2026-06-29