7 lines (6 with data), 252 Bytes

e155a 0 128 0 14:35:00 12/08/1987
# Start time=14:35
# First beat=14:42:56.062
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.507,  <RR-high-limit(sec)>: 1.273
# Note: recording with a timing signal, flutter-compensated