diff --git a/src/Client/ZB.MOM.WW.OtOpcUa.Client.CLI/Commands/AlarmsCommand.cs b/src/Client/ZB.MOM.WW.OtOpcUa.Client.CLI/Commands/AlarmsCommand.cs
index 401fe121..77a48c68 100644
--- a/src/Client/ZB.MOM.WW.OtOpcUa.Client.CLI/Commands/AlarmsCommand.cs
+++ b/src/Client/ZB.MOM.WW.OtOpcUa.Client.CLI/Commands/AlarmsCommand.cs
@@ -79,6 +79,11 @@ public class AlarmsCommand : CommandBase
                     if (!string.IsNullOrEmpty(e.Message))
                         outputChannel.Writer.TryWrite($"  Message:   {e.Message}");
                     outputChannel.Writer.TryWrite($"  Retain:    {e.Retain}");
+                    // `ack` needs both of these and nothing else in the CLI surfaces them.
+                    if (!string.IsNullOrEmpty(e.ConditionNodeId))
+                        outputChannel.Writer.TryWrite($"  ConditionNodeId: {e.ConditionNodeId}");
+                    if (e.EventId is { Length: > 0 })
+                        outputChannel.Writer.TryWrite($"  EventId:   {Convert.ToHexString(e.EventId)}");
                     outputChannel.Writer.TryWrite(string.Empty);
                 }
                 catch
diff --git a/tests/Client/ZB.MOM.WW.OtOpcUa.Client.CLI.Tests/AlarmsCommandTests.cs b/tests/Client/ZB.MOM.WW.OtOpcUa.Client.CLI.Tests/AlarmsCommandTests.cs
index 38524913..fb886417 100644
--- a/tests/Client/ZB.MOM.WW.OtOpcUa.Client.CLI.Tests/AlarmsCommandTests.cs
+++ b/tests/Client/ZB.MOM.WW.OtOpcUa.Client.CLI.Tests/AlarmsCommandTests.cs
@@ -82,6 +82,30 @@ public class AlarmsCommandTests
         output.ShouldContain("Condition refresh requested.");
     }
 
+    /// <summary>The printed alarm carries the ConditionNodeId and EventId that `ack` requires (hex round-trips).</summary>
+    [Fact]
+    public async Task Execute_PrintsConditionNodeIdAndEventId_ForAck()
+    {
+        var fakeService = new FakeOpcUaClientService();
+        var factory = new FakeOpcUaClientServiceFactory(fakeService);
+        var command = new AlarmsCommand(factory) { Url = "opc.tcp://localhost:4840" };
+
+        using var console = TestConsoleHelper.CreateConsole();
+        var task = Task.Run(async () => { await command.ExecuteAsync(console); });
+
+        await fakeService.SubscribeAlarmsInvoked.WaitAsync(TimeSpan.FromSeconds(10));
+        fakeService.RaiseAlarmEvent(new Client.Shared.Models.AlarmEventArgs(
+            "src", "cond", 500, "msg", true, true, false, DateTime.UtcNow,
+            eventId: [0xAB, 0x01, 0xFF], conditionNodeId: "ns=2;s=Plant/cond"));
+        await Task.Delay(500);
+        console.RequestCancellation();
+        await task;
+
+        var output = TestConsoleHelper.GetOutput(console);
+        output.ShouldContain("ConditionNodeId: ns=2;s=Plant/cond");
+        output.ShouldContain("EventId:   AB01FF");
+    }
+
     /// <summary>Verifies that refresh failure prints error.</summary>
     [Fact]
     public async Task Execute_RefreshFailure_PrintsError()