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USI Sensing Plus Combo Smoke AMIC3511SB$54.99
Install combination smoke, fire & carbon monoxide alarms that meet both UL Standard 217 8th Edition & UL Standard 2034 4th edition. Bring your property up to code with a new standard in smoke detection which utilizes multi criteria smoke and fire sensors, this AI powered smoke detector can differentiate and respond to both fast flaming and slow smoldering fires.