diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorCalibrationActivity.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorCalibrationActivity.kt
index 38b0d52..8714240 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorCalibrationActivity.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorCalibrationActivity.kt
@@ -4,6 +4,7 @@ import android.text.TextUtils
 import android.view.KeyEvent
 import android.view.View
 import androidx.lifecycle.lifecycleScope
+import com.common.commonlib.utils.MMKVUtils
 import com.yinuo.safetywatcher.R
 import com.yinuo.safetywatcher.databinding.ActivitySensorCalibrationBinding
 import com.yinuo.safetywatcher.watcher.base.NoOptionsActivity
@@ -28,7 +29,7 @@ class SensorCalibrationActivity : NoOptionsActivity() {
         return mBinding.root
     }
 
-    var sensorIndex = -1
+    private var sensorIndex = -1
 
     private val calibrationResultReceiver: (ByteArray) -> Unit = {
         val startByte = it[0]
@@ -56,6 +57,10 @@ class SensorCalibrationActivity : NoOptionsActivity() {
             mBinding.tvSave.text = getString(R.string.calibration_zero_txt)
         } else {
             mBinding.layoutInput.visibility = View.VISIBLE
+            val localValue = MMKVUtils.getInt("${gasName}_Calibration")
+            if (localValue >= 0) {
+                mBinding.etName.setText(localValue.toString())
+            }
         }
 
         /**
@@ -92,6 +97,7 @@ class SensorCalibrationActivity : NoOptionsActivity() {
                 }
                 if (sensorIndex != -1) {
                     val toInt = text.toInt()
+                    MMKVUtils.put("${gasName}_Calibration", toInt)
                     GasPortUtils.calibrationSensor(sensorIndex, toInt)
                 }
             }