7 lines (6 with data), 252 Bytes

e253a 0 128 0 16:49:00 16/11/1987
# Start time=16:49
# First beat=16:56:31.585
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.453,  <RR-high-limit(sec)>: 0.664
# Note: recording with a timing signal, flutter-compensated