7 lines (6 with data), 253 Bytes

e204a 0 128 0 10:46:00 11/12/1988
# Start time=10:46
# First beat=10:53:23.328
# <age-range>: 60-64, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.539,  <RR-high-limit(sec)>: 1.21
# Note: recording with a timing signal, flutter-compensated