Too true. An RFID wrist tag is common place in many nursing homes and hospitals to aid with wandering residents, sadly some with Alzheimer's. In my last job I was employed as a field / bench technician to install and service a wireless nurse call system operating on 27 and 304MHz. Top system. I worked with RFID-based wrist tags, door alarms, pressure sensors, displays, repeaters, dialers. Depressing job.





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