7 lines (6 with data), 251 Bytes

e210a 0 128 0 12:34:00 16/08/1988
# Start time=12:34
# First beat=12:36:44.046
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.648,  <RR-high-limit(sec)>: 1.32
# Note: recording with a timing signal, flutter-compensated