diff --git a/app/src/main/java/com/casic/detector/view/MainActivity.kt b/app/src/main/java/com/casic/detector/view/MainActivity.kt
index 0487909..b17358d 100644
--- a/app/src/main/java/com/casic/detector/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/detector/view/MainActivity.kt
@@ -1342,7 +1342,7 @@
                 countDownTimer.cancel()
                 try {
                     val depthResponse = hex.take(10).hexToString()
-                    val depth = depthResponse.drop(4)
+                    val depth = depthResponse.drop(2).toInt()
                     AlertMessageDialog.Builder().setContext(context).setTitle("温馨提示")
                         .setMessage("标识器埋深：${depth}厘米").setPositiveButton("知道了")
                         .setOnDialogButtonClickListener(object :