7 lines (6 with data), 254 Bytes

e266a 0 128 0 15:30:00 12/01/1989
# Start time=15:30
# First beat=15:30:00.296
# <age-range>: 60-64, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.429,  <RR-high-limit(sec)>: 0.921
# Note: recording with a timing signal, flutter-compensated