diff --git a/app/src/main/java/com/laseroptek/raman/ui/screens/main/MainViewModel.kt b/app/src/main/java/com/laseroptek/raman/ui/screens/main/MainViewModel.kt
index 37a16ef..41401c9 100644
--- a/app/src/main/java/com/laseroptek/raman/ui/screens/main/MainViewModel.kt
+++ b/app/src/main/java/com/laseroptek/raman/ui/screens/main/MainViewModel.kt
@@ -833,6 +833,9 @@ class MainViewModel @Inject constructor(
             // tx Q-Switch Write
             txPacket(READ_WRITE.WRITE, CMD.Q_SWITCH, qSwitch.value)
 
+            // tx Oven Write (align with Engineer KTP write source)
+            txPacket(READ_WRITE.WRITE, CMD.OVEN, Oven(ktp = temperature_write.value.ktp))
+
             // tx Guide Beam Write
             txPacket(READ_WRITE.WRITE, CMD.GUIDE_BEAM, GuideBeam(value = getGuideBeamTxValue()))