diff --git a/tsplotv b/tsplotv
index 23fd9a8..445e59a 100755
--- a/tsplotv
+++ b/tsplotv
@@ -16,6 +16,7 @@ tsplotv
 [--time_t]
 [--colors rgb-list]
 [--configfile yaml]
+[--yrange min:max]
 [file ...]
 
 =head1 DESCRIPTION
@@ -55,6 +56,7 @@ my $finalresolution;
 my $time_t = 0;
 my $colors;
 my $configfile;
+my $yrange;
 
 GetOptions('help|?' => \$help,
 	   'legend_position|legend-position=s'	=> \$legend_position,
@@ -66,6 +68,7 @@ GetOptions('help|?' => \$help,
 	   'time_t'			        => \$time_t,
            'colors=s'                           => \$colors,
            'configfile=s'                       => \$configfile,
+           'yrange=s'                           => \$yrange,
 	  ) or pod2usage(2);
 pod2usage(1) if $help;
 
@@ -106,6 +109,13 @@ $ts->log_y($log_y);
 $ts->finalresolution($finalresolution) if $finalresolution;
 $ts->colors(map $config->{timeseries}{$_}{color}, @series);
 
+if ($yrange) {
+    $yrange =~s /^\[(.*)\]$/$1/; # remove optional brackets
+    my ($min, $max) = $yrange =~ /^(\*|[-+0-9E.]+):(\*|[-+0-9E.]+)$/;
+    $ts->yrange($min, $max);
+}
+
+
 for my $timestamp (sort keys %data) {
     my %d = %{$data{$timestamp}};
     my @values = @d{@series};