The dispenser beacon may be provided with {HEAD ~ a buzzer} , which is triggered by a successful transaction with {TAIL ~ the care giver} 
The dispenser beacon may be provided with { HEAD ~ a buzzer } , which is triggered by a successful transaction with { TAIL ~ the care giver }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL