diff --git a/cloudforecast_sample.yaml b/cloudforecast_sample.yaml
index ba6c0ed..718a6ac 100644
--- a/cloudforecast_sample.yaml
+++ b/cloudforecast_sample.yaml
@@ -9,6 +9,8 @@ config:
   data_dir: data
 # 監視項目の設定ファイルを設置するディレクトリ。「/」から始まると絶対パス
   host_config_dir: host_config
+# radarの実行間隔(秒)
+  interval: 300
 
 component_config:
 # SNMPでデータを取得する時のオプション。communityとversion
diff --git a/lib/CloudForecast/Radar.pm b/lib/CloudForecast/Radar.pm
index a09c3b8..94f9d6d 100644
--- a/lib/CloudForecast/Radar.pm
+++ b/lib/CloudForecast/Radar.pm
@@ -39,7 +39,8 @@ sub run {
     }
 
     my $now = time;
-    my $next = $now - ( $now % 300 )  + 300;
+    my $interval = $global_config->{interval} || 300;
+    my $next = $now - ( $now % $interval )  + $interval;
     my $pid;
 
     my @signals_received;
@@ -76,7 +77,7 @@ sub run {
         $now = time;
         if ( $now >= $next ) {
             CloudForecast::Log->warn( sprintf( "(%s) radar start ", scalar localtime $next) );
-            $next = $now - ( $now % 300 ) + 300;
+            $next = $now - ( $now % $interval ) + $interval;
 
             if ( $pid ) {
                 CloudForecast::Log->warn( "Previous radar exists, skipping this time");