Wireless Interface: Wi-Fi 2400 MHz Suitable for: Door/Window AAA White Easy InstallConnect in minutesNo Hub RequiredPlug & play2.4GHz Wi-FiEasy wireless operationBatteries PoweredBatteries included (AAA x 2)Mobile AlertsAlways stay in touch with push notifications when activity is detectedMulti-Purpose UsePerfect for doors, windowsSmartphone ControlControl using the appAdd a Siren for Audible AlertsAdd sensors, siren, cameras & moreComplete Peace of MindAlways know what's happening & be protected with this window or door alarm sensor to trigger mobile phone notifications & optional siren.Easy to UseIf a door or window is opened, disrupting the magnetic connection between the Sensor & Receiver, you can activate/deactivate remotely using the app.Perfect for RentersDo-it-yourself with ease. The sensor mounts with double-sided adhesive. No need to drill walls. Ideal for apartments & rental properties.More than an AlarmCombine with an add-on Indoor Siren (sold separately) for audible alerts