Here are the serial numbers of the sonics on the tower, as gleaned from the sonic log files, in $ISFF/projects/CABL/ISFF/perm_logs:

height (m)se, port 1nw, port 2
501123

1120 (faulty unit, no good data)
800 (installed Mar 2 21:05 UTC)  
1001124853
150536537
200674671
250672539
3008561122