7 lines (6 with data), 252 Bytes

e045a 0 128 0 10:00:00 11/12/1987
# Start time=10:00
# First beat=10:03:57.640
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.437,  <RR-high-limit(sec)>: 1.023
# Note: recording with a timing signal, flutter-compensated