diff --git a/UHFHelper/UHF_RS485_Helper.cs b/UHFHelper/UHF_RS485_Helper.cs
index b00b459..f34c04c 100644
--- a/UHFHelper/UHF_RS485_Helper.cs
+++ b/UHFHelper/UHF_RS485_Helper.cs
@@ -188,9 +188,9 @@ namespace UHFHelper
         /// <summary>
         /// 发出蜂鸣声音3次,代表扣款成功!
         /// </summary>
-        public async void OpenBeep()
+        public async void OpenBeep(int addr)
         {
-            byte[] sendData = new byte[]{ 0x07, 0x01, 0x33, 0x08, 0x02, 0x03, 0x33,0xB1 };
+            byte[] sendData = new byte[]{ 0x07, (byte)addr, 0x33, 0x08, 0x02, 0x03, 0x33,0xB1 };
             await SendMessageAsync(sendData, TimeSpan.FromSeconds(1), 6);
         }
     }