diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index e541e78e..07bf51ce 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,6 +1,27 @@
 CHANGELOG - towerops-web
 ========================
 
+2026-02-12 - feat: add AirFiber AF-LTU optical power sensors (per-chain RX power, TX EIRP)
+  - Files: priv/profiles/os_discovery/airos-af-ltu.yaml (enhanced)
+    Added TIER 3 MEDIUM priority optical power sensors for Ubiquiti AirFiber AF-LTU:
+    - RX Power Chain 0: Received optical power chain 0 in dBm
+      OID: .1.3.6.1.4.1.41112.1.10.1.4.1.5
+    - RX Power Chain 1: Received optical power chain 1 in dBm
+      OID: .1.3.6.1.4.1.41112.1.10.1.4.1.6
+    - RX Ideal Power Chain 0: Ideal received power chain 0 in dBm
+      OID: .1.3.6.1.4.1.41112.1.10.1.4.1.7
+    - RX Ideal Power Chain 1: Ideal received power chain 1 in dBm
+      OID: .1.3.6.1.4.1.41112.1.10.1.4.1.8
+    - TX EIRP: Transmit effective isotropic radiated power in dBm
+      OID: .1.3.6.1.4.1.41112.1.10.1.2.6
+  - Impact: Per-chain optical power monitoring enables detection of imbalanced
+    signal levels, fiber issues, and link budget problems. Ideal power comparison
+    helps identify suboptimal alignment or hardware degradation.
+  - Source: LibreNMS LibreNMS/OS/AirosAfLtu.php
+  - Priority: TIER 3 MEDIUM (enhanced troubleshooting and diagnostics)
+  - Gap Status: AF-LTU parity 80% → 90%
+  - Remaining: UniFi channel-to-frequency conversion (requires vendor module work)
+
 2026-02-12 - feat: add AirFiber wireless metrics (frequency, distance, capacity, RSSI, SNR)
   - Files: priv/profiles/os_discovery/airos-af60.yaml (enhanced)
     Added TIER 2 HIGH priority wireless metrics for Ubiquiti AirFiber AF60:
diff --git a/priv/profiles/os_discovery/airos-af-ltu.yaml b/priv/profiles/os_discovery/airos-af-ltu.yaml
index e16e52c9..5ee59ba3 100644
--- a/priv/profiles/os_discovery/airos-af-ltu.yaml
+++ b/priv/profiles/os_discovery/airos-af-ltu.yaml
@@ -98,6 +98,33 @@ modules:
                     index: afLTUStaRxCapacity
                     descr: RX Capacity
                     divisor: 1000
+        dbm:
+            data:
+                -
+                    oid: afLTUStaRxPower0
+                    num_oid: '.1.3.6.1.4.1.41112.1.10.1.4.1.5.{{ $index }}'
+                    index: afLTUStaRxPower0
+                    descr: RX Power Chain 0
+                -
+                    oid: afLTUStaRxPower1
+                    num_oid: '.1.3.6.1.4.1.41112.1.10.1.4.1.6.{{ $index }}'
+                    index: afLTUStaRxPower1
+                    descr: RX Power Chain 1
+                -
+                    oid: afLTUStaRxIdealPower0
+                    num_oid: '.1.3.6.1.4.1.41112.1.10.1.4.1.7.{{ $index }}'
+                    index: afLTUStaRxIdealPower0
+                    descr: RX Ideal Power Chain 0
+                -
+                    oid: afLTUStaRxIdealPower1
+                    num_oid: '.1.3.6.1.4.1.41112.1.10.1.4.1.8.{{ $index }}'
+                    index: afLTUStaRxIdealPower1
+                    descr: RX Ideal Power Chain 1
+                -
+                    oid: afLTUTxEIRP
+                    num_oid: '.1.3.6.1.4.1.41112.1.10.1.2.6.{{ $index }}'
+                    index: afLTUTxEIRP
+                    descr: TX EIRP
         count:
             data:
                 -