There are various ways to create a regex for this, but I wouldn't create such a one. I'd do (untested):

while (<DATA>) {
    chomp;
    my $copy = $_;
    s/[< ]+//g;
    print "MATCH => $copy\n" if $_ eq 'Sensor30';
}
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But then, I assume you want to ignore greater than signs and spaces anywhere in the line, so you also want to match Se>>>nsor 30 and S e n s o r > 3 0.