7 lines (6 with data), 248 Bytes

e220a 0 128 0 12:59:00 21/07/1988
# Start time=12:59
# First beat=13:03:30.187
# <age-range>: 45-49, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.554,  <RR-high-limit(sec)>: 0.898
# Note: reel-to-reel recording, not flutter-compensated