call button for elderly used in nursing homes, beadhouse, hospital, nurse station, healthcare

enhance signal when the distance between receiver and buttons >200m

wireless transmitter and receiver for waiter service call

waiter call button table call button used for restaurant, hotel, hospital, etc. 

Y-40C nurse call light signal -can hold cards showing patient information

hospital, nurse station, healthcare patient call nurse paging system

number waiting system wireless call server system

hospital, nurse station, healthcare waterproof hospital panic button for patients

hospital, nurse station, healthcare nurse call panic button for patients