Kidde CV2208 Cavius Mains Optical Smoke Alarm Lithium Battery Wireless Interlink\n\nMains powered smoke alarm device with wireless interlink and battery back-up. Designed for installation in the home.\n\nThis 97mm Mains Powered smoke alarm can be connected with other alarms from the CAVIUS Wireless alarm family or function as a stand alone alarm.\n\nRF Interconnection Built in (no base or module required).\n\nConnect up to 32 Alarms in the CAVIUS Wireless Family Range.\n\n10 Year Lithium Back Up.\n\nLarge Test / Hush Button.\n\nDual Mesh System.\n\nDust Compensation.\n\n10 Year Warranty.\n\nSpecification\n\nModel: CV2208\n\nPower Source: AC/DC 110V AC, 230V AC, CR2 back up battery (non-replaceable)\n\nSensors: Optical\n\nApprovals / Certification: Approved to EN14604 (3rd party tested)\n\nDimensions: 98 x 98 x 53mm\n\nWeight: (including batteries) 205g\n\nTemperature Range: +10\u00BAC to +70\u00BAC\n\nHumidity Range: Up to 90% RH non-condensing\n\nWarranty: 10 Year\n\nInterconnects: z