Location to monitor. Preventing elderly people with "cognitive dementia" leaving. It makes management easier and reduce workload in order to increase staff efficiency. 0~5m Distance Sensing. RFID Clothes Tag, Wearable Tag, Shoes Tag / RFID Tag (No Battery). - Water Resistance and High Temperature, Reusable. - Discrete Monitoring and search location. - Able to detect In / Out direction simultaneously. Installation Methods : Ceiling Mount / Wall-Mount