[multi-person & Fall Detection] The Fp2 Can Simultaneously Detect Up To 5 People And Trigger Different Scenarios And Automation. Moreover, You Can Mount The Fp2 On The Ceiling And Choose The Falling Detection Mode, Which Will Detect And Alert You Through The App If Someone Falls. (note: The Falling Detection Mode Is Only Availabe When You Mount The Fp2 On The Ceiling. The Fp2 Is Not A Medical Device, And Can Only Be Used For Notification Purposes) [multi-ecosystem Support] The Aqara Presence Sensor Fp2 Is Exposed As Multiple Sensors To Homekit, Alexa, Google Home And Home Assistant. (note: The Device Can Be Added Directly To Home Assistant Using Homekit Controller Integration. Connect The Fp2 To Aqara Home Before Enabling Skills In Google Home And Alexa.) You Can Integrate The Sensor Easily Without Requiring An Aqara Hub, Which Is A Great Solution For Smart Home Enthusiasts. [ultra-high Precision With More Privacy] By Implementing Millimeter-wave Radar Technology, The Presence Sensor Fp2 Provides Precise Detection Of Movement Without Producing False Negatives, Even For Slight Movements.( Choose The Zone Type Based On The Actual Environment, Such As Bed, Sofa Area, Etc.) Also, The Detection Does Not Require A Camera Monitoring System, Maximizing Privacy For Users.