diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a890e3..08b1fc2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@
 - **NINA-Integration**: Anbindung an die NINA Warn-App des BBK (Bundesamt für Bevölkerungsschutz
   und Katastrophenhilfe). Warnmeldungen werden per HTTP-Polling von `warnung.bund.de/api31`
   abgerufen und bei neuen Meldungen automatisch ins Meshtastic-Netz gesendet.
+- **Duales Polling**: Zwei parallele Abfragestrategien pro Zyklus:
+  - **Dashboard** (`/dashboard/{AGS}.json`): Regionale Filterung durch den BBK-Server,
+    deckt alle Quellen für konfigurierte AGS-Codes ab.
+  - **mapData** (`/{quelle}/mapData.json`): Nationale Abfrage je aktivierter Quelle
+    (Katwarn, BIWAPP, MoWaS, DWD, LHP, Polizei) mit Schweregrad-Filterung.
+    Schließt Lücken, die der Dashboard-Endpunkt nicht abdeckt.
+  - Intelligente quellenübergreifende De-Duplikation via ID-Normalisierung
+    (z.B. `dwdmap.` ↔ `dwd.`, `mow.` ↔ `mowas.`).
 - **NINA-Konfigurationsseite** (`/nina`, Admin-only): Separate Webseite zur Verwaltung der
   NINA-Einstellungen – analog zur Scheduler-Seite. Konfigurierbar:
   - Aktivierung / Deaktivierung
@@ -14,6 +22,9 @@
   - Mindest-Schweregrad (Gering / Mäßig / Schwerwiegend / Extrem)
   - AGS-Codes (Amtliche Gemeindeschlüssel) der zu überwachenden Landkreise/Städte
   - Quellen-Auswahl (Katwarn, BIWAPP, MoWaS, DWD, LHP, Polizei)
+  - **„Ins Mesh senden"**-Schalter: aus = Monitor-Modus (nur Weboberfläche, kein Mesh-Versand)
+- **Voreinstellung Raum Dresden**: `nina.yaml` enthält 5 AGS-Codes als Standard:
+  Stadt Dresden, LK Meißen, LK Sächsische Schweiz-Osterzgebirge, LK Bautzen, LK Görlitz
 - **Live-Anzeige** empfangener NINA-Warnmeldungen in der Weboberfläche via WebSocket
   (`nina_alert`-Event).
 - **NINA-Sidebar-Eintrag** in allen Seiten (Admin-only, Icon: `bi-shield-exclamation`).
diff --git a/conf/nina.yaml b/conf/nina.yaml
index e6259e8..c66f842 100644
--- a/conf/nina.yaml
+++ b/conf/nina.yaml
@@ -1,9 +1,14 @@
 enabled: false
+send_to_mesh: false    # true = ins Mesh senden | false = nur Weboberfläche (Monitor-Modus)
 poll_interval: 300
 channel: 0
 min_severity: Severe
 ags_codes:
-  - "091620000000"   # Beispiel: München
+  - "146120000000"   # Stadt Dresden
+  - "146270000000"   # Landkreis Meißen
+  - "146280000000"   # LK Sächsische Schweiz-Osterzgebirge
+  - "146250000000"   # Landkreis Bautzen
+  - "146260000000"   # Landkreis Görlitz
 sources:
   katwarn: true
   biwapp: true
diff --git a/meshbot/nina.py b/meshbot/nina.py
index ca71aeb..e872dfa 100644
--- a/meshbot/nina.py
+++ b/meshbot/nina.py
@@ -26,18 +26,37 @@ SEVERITY_LABELS = {
     "Minor": "Gering",
 }
 
-# Warning ID prefixes for source filtering
+# Dashboard-Endpunkt: ID-Präfixe je Quelle (für Quellen-Filterung)
 SOURCE_PREFIXES = {
-    "katwarn": "katwarn.",
-    "biwapp": "biwapp.",
-    "mowas": "mowas.",
-    "dwd": "dwd.",
-    "lhp": "lhp.",
-    "police": "police.",
+    "katwarn": ("katwarn.",),
+    "biwapp":  ("biwapp.",),
+    "mowas":   ("mowas.", "mow."),
+    "dwd":     ("dwd.",),
+    "lhp":     ("lhp.",),
+    "police":  ("police.",),
 }
 
+# mapData-Endpunkte je Quelle
+SOURCE_MAP_ENDPOINTS = {
+    "katwarn": "katwarn",
+    "biwapp":  "biwapp",
+    "mowas":   "mowas",
+    "dwd":     "dwd",
+    "lhp":     "lhp",
+    "police":  "police",
+}
+
+# Normalisierung für quellenübergreifende De-Duplikation (mapData-Präfix → Dashboard-Präfix)
+ID_NORMALIZATIONS = [
+    ("dwdmap.",  "dwd."),
+    ("lhpmap.",  "lhp."),
+    ("polmap.",  "police."),
+    ("mow.",     "mowas."),
+]
+
 DEFAULT_CONFIG = {
     "enabled": False,
+    "send_to_mesh": True,
     "poll_interval": 300,
     "channel": 0,
     "min_severity": "Severe",
@@ -54,14 +73,22 @@ DEFAULT_CONFIG = {
 
 
 class NinaBot:
-    """Polls the NINA BBK warning API and forwards alerts to Meshtastic."""
+    """Polls the NINA BBK warning API and forwards alerts to Meshtastic.
+
+    Two polling strategies run in parallel per cycle:
+    1. Dashboard  – regional, per AGS code (all sources, geographic filter by BBK server)
+    2. mapData    – national, per source   (severity-only filter, covers gaps in dashboard)
+
+    Cross-strategy de-duplication is achieved by normalising warning IDs before
+    storing them in _known (e.g. 'dwdmap.' → 'dwd.').
+    """
 
     def __init__(self, send_callback: Callable[[str, int], Awaitable[None]], ws_manager=None):
         self.send_callback = send_callback
         self.ws_manager = ws_manager
         self.config: dict = {}
         self._mtime: float = 0.0
-        self._known: dict[str, str] = {}  # id -> sent timestamp (de-dup)
+        self._known: dict[str, str] = {}  # normalised_id -> sent (de-dup)
         self._running = False
         self._task: asyncio.Task | None = None
         self._load()
@@ -83,17 +110,11 @@ class NinaBot:
             )
         except FileNotFoundError:
             logger.info("No nina.yaml found – using defaults")
-            self.config = {
-                **DEFAULT_CONFIG,
-                "sources": dict(DEFAULT_CONFIG["sources"]),
-            }
+            self.config = {**DEFAULT_CONFIG, "sources": dict(DEFAULT_CONFIG["sources"])}
             self._save()
         except Exception:
             logger.exception("Error loading nina.yaml")
-            self.config = {
-                **DEFAULT_CONFIG,
-                "sources": dict(DEFAULT_CONFIG["sources"]),
-            }
+            self.config = {**DEFAULT_CONFIG, "sources": dict(DEFAULT_CONFIG["sources"])}
 
     def _save(self):
         try:
@@ -167,22 +188,51 @@ class NinaBot:
             await asyncio.sleep(interval)
 
     async def _check_alerts(self):
-        ags_codes = self.config.get("ags_codes", [])
-        if not ags_codes:
-            return
         min_level = SEVERITY_ORDER.get(self.config.get("min_severity", "Severe"), 2)
         channel = int(self.config.get("channel", 0))
         sources = self.config.get("sources", DEFAULT_CONFIG["sources"])
+        ags_codes = self.config.get("ags_codes", [])
 
         async with aiohttp.ClientSession(
             headers={"User-Agent": "MeshDD-Bot/1.0 (+https://github.com/ppfeiffer/MeshDD-Bot)"},
             timeout=aiohttp.ClientTimeout(total=30),
         ) as session:
+            # 1. Dashboard: regional filtering per AGS code (server-side, all sources)
             for ags in ags_codes:
                 try:
                     await self._fetch_dashboard(session, str(ags).strip(), min_level, channel, sources)
                 except Exception:
-                    logger.exception("NINA error for AGS %s", ags)
+                    logger.exception("NINA dashboard error for AGS %s", ags)
+
+            # 2. mapData: national per-source polling (severity + source filter only)
+            for source_key, endpoint in SOURCE_MAP_ENDPOINTS.items():
+                if not sources.get(source_key, True):
+                    continue
+                try:
+                    await self._fetch_map_data(session, source_key, endpoint, min_level, channel)
+                except Exception:
+                    logger.exception("NINA mapData error for source %s", source_key)
+
+    # ── De-duplication helper ────────────────────────────────────────────────
+
+    @staticmethod
+    def _normalise_id(identifier: str) -> str:
+        """Normalise a warning ID to a canonical form for cross-source de-duplication."""
+        for old, new in ID_NORMALIZATIONS:
+            if identifier.startswith(old):
+                return new + identifier[len(old):]
+        return identifier
+
+    @staticmethod
+    def _source_key_for(identifier: str) -> str | None:
+        """Return the source config key for a given warning ID, or None if unknown."""
+        for key, prefixes in SOURCE_PREFIXES.items():
+            for p in prefixes:
+                if identifier.startswith(p):
+                    return key
+        return None
+
+    # ── Dashboard endpoint ───────────────────────────────────────────────────
 
     async def _fetch_dashboard(
         self,
@@ -192,40 +242,39 @@ class NinaBot:
         channel: int,
         sources: dict,
     ):
-        # Pad AGS/ARS to 12 characters
         ars = ags.ljust(12, "0")
         url = f"{NINA_API_BASE}/dashboard/{ars}.json"
 
         async with session.get(url) as resp:
             if resp.status == 404:
-                logger.warning("NINA: no data for AGS %s (404)", ags)
+                logger.warning("NINA dashboard: no data for AGS %s (404)", ags)
                 return
             if resp.status != 200:
-                logger.warning("NINA API returned status %d for %s", resp.status, url)
+                logger.warning("NINA dashboard: status %d for %s", resp.status, url)
                 return
             items = await resp.json(content_type=None)
 
         if not isinstance(items, list):
-            logger.warning("NINA: unexpected response type for AGS %s", ags)
+            logger.warning("NINA dashboard: unexpected response type for AGS %s", ags)
             return
 
         for item in items:
             try:
-                await self._process_item(item, min_level, channel, sources)
+                await self._process_dashboard_item(item, min_level, channel, sources)
             except Exception:
-                logger.exception("NINA: error processing item %s", item.get("id"))
+                logger.exception("NINA dashboard: error processing %s", item.get("id"))
 
-    async def _process_item(self, item: dict, min_level: int, channel: int, sources: dict):
+    async def _process_dashboard_item(
+        self, item: dict, min_level: int, channel: int, sources: dict
+    ):
         identifier = item.get("id", "")
         if not identifier:
             return
 
         # Filter by source
-        for source_key, prefix in SOURCE_PREFIXES.items():
-            if identifier.startswith(prefix):
-                if not sources.get(source_key, True):
-                    return
-                break
+        src_key = self._source_key_for(identifier)
+        if src_key and not sources.get(src_key, True):
+            return
 
         payload = item.get("payload", {})
         sent = payload.get("sent", item.get("sent", ""))
@@ -237,27 +286,101 @@ class NinaBot:
         if sev_level < min_level and msg_type != "Cancel":
             return
 
-        # De-duplicate: skip if already processed with same sent timestamp
-        if identifier in self._known and self._known[identifier] == sent:
+        dedup_key = self._normalise_id(identifier)
+        if dedup_key in self._known and self._known[dedup_key] == sent:
             return
-        self._known[identifier] = sent
+        self._known[dedup_key] = sent
 
         headline = data.get("headline", "Warnung")
         description = data.get("description", "")
 
-        if msg_type == "Cancel":
-            text = f"[NINA] Aufgehoben: {headline}"
-        else:
-            sev_text = SEVERITY_LABELS.get(severity, severity)
-            text = f"[NINA] {sev_text}: {headline}"
-            if description:
-                short_desc = description.strip()[:120]
-                if len(description.strip()) > 120:
-                    short_desc += "..."
-                text += f"\n{short_desc}"
+        text = self._format_alert(msg_type, severity, headline, description)
+        logger.info("NINA dashboard alert: %s (id=%s)", headline, identifier)
+        await self._send(identifier, severity, msg_type, headline, sent, text, channel)
 
-        logger.info("NINA alert forwarded: %s (id=%s)", headline, identifier)
-        await self.send_callback(text, channel)
+    # ── mapData endpoint ─────────────────────────────────────────────────────
+
+    async def _fetch_map_data(
+        self,
+        session: aiohttp.ClientSession,
+        source_key: str,
+        endpoint: str,
+        min_level: int,
+        channel: int,
+    ):
+        url = f"{NINA_API_BASE}/{endpoint}/mapData.json"
+
+        async with session.get(url) as resp:
+            if resp.status != 200:
+                logger.warning("NINA mapData %s: status %d", source_key, resp.status)
+                return
+            items = await resp.json(content_type=None)
+
+        if not isinstance(items, list):
+            logger.warning("NINA mapData %s: unexpected response type", source_key)
+            return
+
+        for item in items:
+            try:
+                await self._process_map_item(item, min_level, channel)
+            except Exception:
+                logger.exception("NINA mapData: error processing %s", item.get("id"))
+
+    async def _process_map_item(self, item: dict, min_level: int, channel: int):
+        identifier = item.get("id", "")
+        if not identifier:
+            return
+
+        severity = item.get("severity", "Unknown")
+        msg_type = item.get("type", "Alert")
+        sent = item.get("startDate", item.get("sent", ""))
+
+        sev_level = SEVERITY_ORDER.get(severity, -1)
+        if sev_level < min_level and msg_type != "Cancel":
+            return
+
+        dedup_key = self._normalise_id(identifier)
+        if dedup_key in self._known and self._known[dedup_key] == sent:
+            return
+        self._known[dedup_key] = sent
+
+        # Headline aus i18nTitle (Deutsch bevorzugt)
+        i18n = item.get("i18nTitle", {})
+        headline = i18n.get("de") or i18n.get("en") or identifier
+
+        text = self._format_alert(msg_type, severity, headline, "")
+        logger.info("NINA mapData alert: %s (id=%s)", headline, identifier)
+        await self._send(identifier, severity, msg_type, headline, sent, text, channel)
+
+    # ── Shared helpers ───────────────────────────────────────────────────────
+
+    @staticmethod
+    def _format_alert(msg_type: str, severity: str, headline: str, description: str) -> str:
+        if msg_type == "Cancel":
+            return f"[NINA] Aufgehoben: {headline}"
+        sev_text = SEVERITY_LABELS.get(severity, severity)
+        text = f"[NINA] {sev_text}: {headline}"
+        if description:
+            short = description.strip()[:120]
+            if len(description.strip()) > 120:
+                short += "..."
+            text += f"\n{short}"
+        return text
+
+    async def _send(
+        self,
+        identifier: str,
+        severity: str,
+        msg_type: str,
+        headline: str,
+        sent: str,
+        text: str,
+        channel: int,
+    ):
+        if self.config.get("send_to_mesh", True):
+            await self.send_callback(text, channel)
+        else:
+            logger.info("NINA monitor-only: Mesh-Versand deaktiviert, nur WebSocket-Broadcast")
 
         if self.ws_manager:
             await self.ws_manager.broadcast("nina_alert", {
@@ -266,4 +389,5 @@ class NinaBot:
                 "msgType": msg_type,
                 "headline": headline,
                 "sent": sent,
+                "monitor_only": not self.config.get("send_to_mesh", True),
             })
diff --git a/nina.yaml b/nina.yaml
index bb676ec..c66f842 100644
--- a/nina.yaml
+++ b/nina.yaml
@@ -1,8 +1,14 @@
 enabled: false
+send_to_mesh: false    # true = ins Mesh senden | false = nur Weboberfläche (Monitor-Modus)
 poll_interval: 300
 channel: 0
 min_severity: Severe
-ags_codes: []
+ags_codes:
+  - "146120000000"   # Stadt Dresden
+  - "146270000000"   # Landkreis Meißen
+  - "146280000000"   # LK Sächsische Schweiz-Osterzgebirge
+  - "146250000000"   # Landkreis Bautzen
+  - "146260000000"   # Landkreis Görlitz
 sources:
   katwarn: true
   biwapp: true
diff --git a/static/js/nina.js b/static/js/nina.js
index b07f3a7..3d28b65 100644
--- a/static/js/nina.js
+++ b/static/js/nina.js
@@ -67,6 +67,7 @@ async function loadConfig() {
 
 function applyConfig(cfg) {
     document.getElementById('ninaEnabled').checked = !!cfg.enabled;
+    document.getElementById('ninaSendToMesh').checked = cfg.send_to_mesh !== false;
     document.getElementById('pollInterval').value = cfg.poll_interval ?? 300;
     document.getElementById('ninaChannel').value = cfg.channel ?? 0;
     document.getElementById('minSeverity').value = cfg.min_severity ?? 'Severe';
@@ -87,8 +88,9 @@ function updateStatusBadge(cfg) {
     const badge = document.getElementById('statusBadge');
     if (cfg.enabled) {
         const codes = Array.isArray(cfg.ags_codes) ? cfg.ags_codes.length : 0;
-        badge.className = 'badge bg-success';
-        badge.textContent = `Aktiv · ${codes} Region${codes !== 1 ? 'en' : ''}`;
+        const mode = cfg.send_to_mesh !== false ? 'Mesh+Web' : 'Nur Web';
+        badge.className = cfg.send_to_mesh !== false ? 'badge bg-success' : 'badge bg-warning text-dark';
+        badge.textContent = `Aktiv · ${codes} Region${codes !== 1 ? 'en' : ''} · ${mode}`;
     } else {
         badge.className = 'badge bg-secondary';
         badge.textContent = 'Deaktiviert';
@@ -100,6 +102,7 @@ function updateStatusBadge(cfg) {
 document.getElementById('btnSaveNina').addEventListener('click', async () => {
     const payload = {
         enabled: document.getElementById('ninaEnabled').checked,
+        send_to_mesh: document.getElementById('ninaSendToMesh').checked,
         poll_interval: parseInt(document.getElementById('pollInterval').value) || 300,
         channel: parseInt(document.getElementById('ninaChannel').value) || 0,
         min_severity: document.getElementById('minSeverity').value,
@@ -168,10 +171,14 @@ function renderAlerts() {
         const cls = a.msgType === 'Cancel' ? 'secondary' : (SEV_CLASS[a.severity] ?? 'secondary');
         const sevLabel = a.msgType === 'Cancel' ? 'Aufgehoben' : (SEV_LABEL[a.severity] ?? a.severity);
         const ts = a.sent ? new Date(a.sent).toLocaleString('de-DE', { dateStyle: 'short', timeStyle: 'short' }) : '–';
+        const meshIcon = a.monitor_only
+            ? '<i class="bi bi-eye text-warning" title="Nur Weboberfläche"></i>'
+            : '<i class="bi bi-broadcast text-success" title="Ins Mesh gesendet"></i>';
         return `<tr>
             <td><span class="badge bg-${cls} bg-opacity-85">${escapeHtml(sevLabel)}</span></td>
             <td>${escapeHtml(a.headline)}</td>
             <td><small class="text-body-secondary">${escapeHtml(a.id?.split('.')[0] ?? '–')}</small></td>
+            <td class="text-center">${meshIcon}</td>
             <td><small class="text-body-secondary">${ts}</small></td>
         </tr>`;
     }).join('');
diff --git a/static/nina.html b/static/nina.html
index 09dde05..51632bc 100644
--- a/static/nina.html
+++ b/static/nina.html
@@ -55,12 +55,19 @@
                     </div>
                     <div class="card-body">
                         <form id="ninaForm">
-                            <!-- Enable toggle -->
-                            <div class="mb-3 d-flex align-items-center gap-3">
-                                <div class="form-check form-switch mb-0">
+                            <!-- Enable + send toggles -->
+                            <div class="mb-3">
+                                <div class="form-check form-switch mb-2">
                                     <input class="form-check-input" type="checkbox" id="ninaEnabled" role="switch">
                                     <label class="form-check-label fw-semibold" for="ninaEnabled">Aktiviert</label>
                                 </div>
+                                <div class="form-check form-switch">
+                                    <input class="form-check-input" type="checkbox" id="ninaSendToMesh" role="switch">
+                                    <label class="form-check-label" for="ninaSendToMesh">
+                                        Ins Mesh senden
+                                        <small class="text-body-secondary ms-1">(aus = nur Weboberfläche)</small>
+                                    </label>
+                                </div>
                             </div>
 
                             <div class="row g-3 mb-3">
@@ -165,6 +172,7 @@
                                     <th style="width:90px">Schweregrad</th>
                                     <th>Meldung</th>
                                     <th style="width:110px">Typ</th>
+                                    <th style="width:60px" class="text-center">Mesh</th>
                                     <th style="width:130px">Zeitstempel</th>
                                 </tr>
                             </thead>