The Blaupunkt SA 2900-R is a wireless alarm system. Use the app on your smartphone (iOS and Android) or the control panel on the base unit to easily set up the system and turn it on and off. The set consists of a motion detector, magnet contact, remote control, and, of course, the control panel. Connect the control panel to AC power and position the wireless sensors in a suitable spot in your home. The sensors communicate wirelessly through an encrypted connection, which makes all communications extra secure and means they can't be copied by potential intruders. Do you want the alarm system to send out more notifications than just the one to your smartphone in case of a threat? It's also possible to have the alarm system registered at a security center. You can expand the alarm system to meet your own needs with a smoke detector, IP camera, and more magnet contacts, among others.