Be sure your house and the people in it are protected by having smoke and fire alarms in every room. This set smoke & fire alarm are a perfect for adding to extra rooms and making sure everyone is awakened and alerted in case of a fire emergency. Real smoke alarm. Beeping and blinking when detecting smoke. 1/3" sharp CCD color camera with audio output. Lens: 3.6mmpinhole lens. Mic Function. Horizontal definition: 420 TV Lines. The camera will alarm when detecting smoke. Power supply is included with the camera. DC 12V 150mA. PAL format.