7 lines (6 with data), 248 Bytes

e271a 0 128 0 13:54:00 28/06/1987
# Start time=13:54
# First beat=14:01:24.242
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 1.382
# Note: reel-to-reel recording, not flutter-compensated