7 lines (6 with data), 252 Bytes

e144a 0 128 0 16:52:00 29/11/1988
# Start time=16:52
# First beat=17:08:48.312
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.562,  <RR-high-limit(sec)>: 1.148
# Note: recording with a timing signal, flutter-compensated