Full Description Kidde Dual-sensor Smoke Alarm – 9 V – Audible, Visual – White General Information Manufacturer:Kidde Fire and SafetyManufacturer Part Number:21007385NManufacturer Website Address:http://www.kidde.comBrand Name:KiddeProduct Name:Dual-sensor Smoke AlarmMarketing Information: Dual-sensor smoke alarm features photoelectric and ionization sensors for the best overall protection. Ionization Sensor may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric Sensor may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Hush feature temporarily silences nuisance alarms. Battery-operated smoke alarm provides continuous protection even during power outages. Easy-to-install smoke alarm includes a 9-volt battery. No wiring is required. Packaged Quantity:1Product Type:Smoke Alarm Technical Information Alarm Type: Audible Visual Product Functions:Alarm Power Description Input Voltage:9 VPower Source:Battery Physical Characteristics Product Color:WhiteApplication/Usage:Smoke Detector Miscellaneous Package Contents: Dual-sensor Smoke Alarm 9V Battery Certifications & Standards: UL Listed Certification Country of Origin:China Warranty Limited Warranty:10 YearAdditional Warranty Information: 10 year limited warranty