Unlike traditional bed sensor pads, the motion sensor can simply be placed on the floor under the bed to accurately detect when a patient's foot touches the floor when getting up, without worrying about false alarms from patient incontinence and displacement.Dual reminder (LED light/sound) and dual power supply (alkaline battery/Micro USB)Easy to monitor loved ones getting out of bed or leaving the roomWireless motion sensors can be placed on the floor under the bed to trigger an alarm when the patient's foot is about to touch the ground, or they can be placed at the door to monitor loved ones leaving the room,It transmits the signal to receivers within the 918ft in open area.1 Caregiver Pager (includes batteries 3*AA) 1 Motion Sensor (includes batteries 3*AAA) 1 Micro USB 1 double-sided tape 1 screw kit and manualThe bed alarm does not sound in the patient's room, potentially startling them and causing a fall,The motion sensor would start self-test procedure first when it is turned on (the indicator light would slowly flash 20 seconds),after the light turned off,the machine get into work state,Please test the sensing range and direction before fixing.