diff --git a/srv/poe_manager/app.py b/srv/poe_manager/app.py
index e3bf378..f982463 100644
--- a/srv/poe_manager/app.py
+++ b/srv/poe_manager/app.py
@@ -122,12 +122,23 @@ def settings():
 
     if request.method == "POST":
         new_interval = int(request.form["interval"])
+
+        # Minuten und Sekunden berechnen
+        interval_minutes = new_interval
+        check_interval_seconds = new_interval * 60
+
         conn = sqlite3.connect("sqlite.db")
         c = conn.cursor()
-        # upsert
-        c.execute("INSERT INTO settings (key, value) VALUES (?, ?) "
-                  "ON CONFLICT(key) DO UPDATE SET value=excluded.value",
-                  ("interval", new_interval))
+        # interval (Minuten)
+        c.execute("""
+            INSERT INTO settings (key, value) VALUES (?, ?)
+            ON CONFLICT(key) DO UPDATE SET value=excluded.value
+        """, ("interval", interval_minutes))
+        # check_interval (Sekunden)
+        c.execute("""
+            INSERT INTO settings (key, value) VALUES (?, ?)
+            ON CONFLICT(key) DO UPDATE SET value=excluded.value
+        """, ("check_interval", check_interval_seconds))
         conn.commit()
         conn.close()
 
@@ -135,7 +146,7 @@ def settings():
         import subprocess
         subprocess.run(["systemctl", "restart", "rpi-check.service"])
 
-        flash(f"Intervall auf {new_interval} Minuten gesetzt und Service neu gestartet!")
+        flash(f"Intervall auf {interval_minutes} Minuten gesetzt und Service neu gestartet!")
         return redirect(url_for("settings"))
 
     return render_template("settings.html", interval=interval)