diff --git a/projects/IoTNode/DeviceServices/FBee/FBeeService.cs b/projects/IoTNode/DeviceServices/FBee/FBeeService.cs
index e6ddb567..abe25c3e 100644
--- a/projects/IoTNode/DeviceServices/FBee/FBeeService.cs
+++ b/projects/IoTNode/DeviceServices/FBee/FBeeService.cs
@@ -217,6 +217,14 @@ namespace IoTNode.DeviceServices.FBee
                         ex.PrintStack();
                     }
                 }
+                foreach (var item in Clients)
+                {
+                    if (!gateways.Any(o => o.Number == item.Key))
+                    {
+                        Clients.Remove(item.Key, out TcpClientWrapper value);
+                        value.Client.Dispose();
+                    }
+                }
             }
         }
 
@@ -290,12 +298,19 @@ namespace IoTNode.DeviceServices.FBee
 
         private void Handle(string sn, byte[] data)
         {
-            var length = 2 + data[1];
-            if (data.Length > length)
+            try
             {
-                Handle(sn, data.Skip(length).ToArray());
+                var length = 2 + data[1];
+                if (data.Length > length)
+                {
+                    Handle(sn, data.Skip(length).ToArray());
+                }
+                this.HandleInternal(sn, data.Take(length).ToArray());
+            }
+            catch (Exception ex)
+            {
+                ex.PrintStack();
             }
-            this.HandleInternal(sn, data.Take(length).ToArray());
         }
 
         private void HandleInternal(string sn, byte[] data)
@@ -1373,7 +1388,7 @@ namespace IoTNode.DeviceServices.FBee
                                     tempBytes.AddRange(item.Value);
                                     tempBytes.Add(0x00);
                                     tempBytes.Add(0x00);
-                                    var electricity = BitConverter.ToUInt64(tempBytes.ToArray()) / 10000f;
+                                    var electricity = BitConverter.ToInt64(tempBytes.ToArray()) / 10000f;
                                     this.UpdateData(deviceRepo, device, device.CreateData(Keys.Electricity, electricity.ToString("f2"), DeviceDataType.Float, "电量", "kWh", timestamp: timestamp));
                                 }
                                 else if (item.Key == 0x050b)
diff --git a/projects/IoTNode/IoTNode.csproj b/projects/IoTNode/IoTNode.csproj
index 7931462d..763b8b58 100644
--- a/projects/IoTNode/IoTNode.csproj
+++ b/projects/IoTNode/IoTNode.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <Version>1.0.0-beta.403.1</Version>
+    <Version>1.0.0-beta.403.3</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="3.1.3" />