diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtilss.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtilss.kt
index 4a6b820..92916d3 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtilss.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtilss.kt
@@ -159,13 +159,13 @@ fun saveGasUnit(gasType: String, unit: String) {
     MMKVUtils.put("unit_$gasType", unit)
 }
 
-/**
- * 获取气体传感器量程
- */
-fun getGasRange(gasType: String): String {
-    val typeEnum = getGasTypeEnumByDesc(gasType)
-    return "0~${typeEnum.rangMax} ${getDefaultUnit(gasType)}"
-}
+///**
+// * 获取气体传感器量程
+// */
+//fun getGasRange(gasType: String): String {
+//    val typeEnum = getGasTypeEnumByDesc(gasType)
+//    return "0~${typeEnum.rangMax} ${getDefaultUnit(gasType)}"
+//}
 
 fun ppm2mgm3(ppmValue: Float, molecular: Int): Float {
     return ppmValue * molecular * PPM_TO_MGM3_CONVERSION_RATE
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/port/ParseHelper.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/port/ParseHelper.kt
index 0414f9e..9aa5c3b 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/port/ParseHelper.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/port/ParseHelper.kt
@@ -17,6 +17,7 @@ import com.yinuo.safetywatcher.watcher.port.cmd.GasTypeEnum
 import com.yinuo.safetywatcher.watcher.port.cmd.O2
 import com.yinuo.safetywatcher.watcher.port.cmd.ResponseHelper
 import com.yinuo.safetywatcher.watcher.port.cmd.getGasTypeEnumByCode
+import com.yinuo.safetywatcher.watcher.port.cmd.getGasTypeEnumByDesc
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
@@ -32,7 +33,7 @@ object ParseHelper {
     private val devicesApi by lazy {
         DevicesApi()
     }
-    private val gasMap = hashMapOf<String, Gas>()
+    private val gasRangeMaxMap = hashMapOf<String, Long>()
     private val unConvertValueMap = hashMapOf<String, Float>()
     private var mWarnListener: ((String, Warning?) -> Unit)? = null;
     fun setWarnChangeListener(onChange: (String, Warning?) -> Unit) {
@@ -115,17 +116,18 @@ object ParseHelper {
             c18.plus(c17).plus(java.lang.Long.toBinaryString(valueHexLong)).toInt(2) / 10f.pow(
                 pointNum
             )
-//        // 量程
-//        val rangHex: String = HexUtils.byteArrToHex(it, 11, 11 + 2)
-//        val rangHexLong: Long = HexUtils.hexToLong(rangHex)
+        // 量程
+        val rangHex: String = HexUtils.byteArrToHex(it, 11, 11 + 2)
+        val rangHexLong: Long = HexUtils.hexToLong(rangHex)
+        gasRangeMaxMap[type.desc] = rangHexLong
 //        // 温度
 //        val temperatureHex: String = HexUtils.byteArrToHex(it, 17, 17 + 2)
 //        val temperature: Long = HexUtils.hexToLong(temperatureHex)
         // 是否超量程
-        val overRange = value > type.rangMax || status == 8
-        LogUtils.w("receive msg 单位转换前 $type, 浓度 = $value $unit, 最大量程 = ${type.rangMax}")
+        val overRange = value > rangHexLong || status == 8
+        LogUtils.w("receive msg 单位转换前 $type, 浓度 = $value $unit, 最大量程 = $rangHexLong")
         if (overRange) {
-            value = type.rangMax.toFloat()
+            value = rangHexLong.toFloat()
         }
 
         value = correctValueByOtherGas(type, value)
@@ -168,8 +170,8 @@ object ParseHelper {
             val warning = dealWarning(typeEnum, value, min, max, unit, overRange)
             gas.warnTxt = getShowWarnTxt(warning)
 
-            // 存储临时数据
-            gasMap[typeEnum.desc] = gas
+//            // 存储临时数据
+//            gasRangeMaxMap[typeEnum.desc] = gas
 
             val gasDao = DBUtils.gasDao()
             gasDao.insert(gas)
@@ -361,4 +363,8 @@ object ParseHelper {
         }
         return 0f
     }
+
+    fun getGasRangeMax(type: String): Long {
+        return gasRangeMaxMap[type] ?: getGasTypeEnumByDesc(type).rangMax.toLong()
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorSettingActivity.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorSettingActivity.kt
index ff7d7af..015a487 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorSettingActivity.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/SensorSettingActivity.kt
@@ -18,7 +18,6 @@ import com.yinuo.safetywatcher.watcher.port.UNIT_PPM
 import com.yinuo.safetywatcher.watcher.port.cmd.CH4_H2
 import com.yinuo.safetywatcher.watcher.port.cmd.O2
 import com.yinuo.safetywatcher.watcher.port.cmd.VOCS
-import com.yinuo.safetywatcher.watcher.port.getGasRange
 import com.yinuo.safetywatcher.watcher.port.getLocalGasUnit
 import com.yinuo.safetywatcher.watcher.port.saveGasUnit
 import com.yinuo.safetywatcher.watcher.utils.hideIme
@@ -43,6 +42,7 @@ class SensorSettingActivity : NoOptionsActivity() {
 
     var gasName = ""
     var sensorIndex = -1
+    var showRbView: View? = null
 
     override fun initView() {
         gasName = intent.getStringExtra("GasType")!!
@@ -53,10 +53,12 @@ class SensorSettingActivity : NoOptionsActivity() {
             mBinding.rgUnit.visibility = View.GONE
             mBinding.rbLel.visibility = View.GONE
             mBinding.rbVol.visibility = View.VISIBLE
+            showRbView = mBinding.rbVol
         } else if (gasName == CH4_H2) {
             mBinding.rgUnit.visibility = View.GONE
             mBinding.rbVol.visibility = View.GONE
             mBinding.rbLel.visibility = View.VISIBLE
+            showRbView = mBinding.rbLel
         } else {
             mBinding.rgUnit.visibility = View.VISIBLE
             mBinding.rbVol.visibility = View.GONE
@@ -66,8 +68,10 @@ class SensorSettingActivity : NoOptionsActivity() {
             }
             if (localGasUnit == UNIT_PPM) {
                 mBinding.rbPpm.isChecked = true
+                showRbView = mBinding.rbPpm
             } else {
                 mBinding.rbMgm3.isChecked = true
+                showRbView = mBinding.rbMgm3
             }
         }
 
@@ -82,9 +86,10 @@ class SensorSettingActivity : NoOptionsActivity() {
                 } else {
                     mBinding.etName.setText("${gasName}传感器")
                 }
-                val gasRange = getGasRange(gasName)
-                mBinding.etStep.text = getString(R.string.sensor_step_txt).plus(": $gasRange")
-                mBinding.etGasName.setText(gasNickName ?: "")
+                val gasRange = ParseHelper.getGasRangeMax(gasName)
+//                mBinding.etStep.text = getString(R.string.sensor_step_txt).plus(": $gasRange")
+                mBinding.etStep.hint = "最大量程：$gasRange $localGasUnit"
+                mBinding.etGasName.hint = "气体名称：$gasNickName"
             }
         }
 
@@ -171,7 +176,7 @@ class SensorSettingActivity : NoOptionsActivity() {
                 }
             } else if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {
                 if (event.action == KeyEvent.ACTION_DOWN) {
-                    mBinding.tvWarnSetting.requestFocus()
+                    mBinding.etStep.requestFocus()
                     return@setOnKeyListener true
                 }
             } else if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
@@ -183,6 +188,27 @@ class SensorSettingActivity : NoOptionsActivity() {
             return@setOnKeyListener false
         }
 
+        mBinding.etStep.setOnKeyListener { v, keyCode, event ->
+            if (keyCode == KeyEvent.KEYCODE_DPAD_UP) {
+                if (event.action == KeyEvent.ACTION_DOWN) {
+                    mBinding.etGasName.requestFocus()
+                    return@setOnKeyListener true
+                }
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {
+                if (event.action == KeyEvent.ACTION_DOWN) {
+//                    mBinding.tvWarnSetting.requestFocus()
+                    showRbView?.requestFocus() ?: mBinding.tvWarnSetting.requestFocus()
+                    return@setOnKeyListener true
+                }
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
+                if (event.action == KeyEvent.ACTION_DOWN) {
+                    mBinding.etStep.showIme()
+                    return@setOnKeyListener true
+                }
+            }
+            return@setOnKeyListener false
+        }
+
         mBinding.etName.setOnFocusChangeListener { _, hasFocus ->
             if (!hasFocus) {
                 mBinding.etName.hideIme()
@@ -227,6 +253,8 @@ class SensorSettingActivity : NoOptionsActivity() {
         val gasNickName = mBinding.etGasName.text.toString()
         saveGasNickName(gasName, gasNickName)
 
+        // TODO 量程
+
         val checkedRadioButtonId = mBinding.rgUnit.checkedRadioButtonId
         var selectedUnit = UNIT_PPM
         if (checkedRadioButtonId == R.id.rb_mgm3) {
diff --git a/app/src/main/res/layout/activity_sensor_setting.xml b/app/src/main/res/layout/activity_sensor_setting.xml
index c03e105..1f0cd5b 100644
--- a/app/src/main/res/layout/activity_sensor_setting.xml
+++ b/app/src/main/res/layout/activity_sensor_setting.xml
@@ -67,15 +67,18 @@
             android:textColorHint="@color/white"
             android:textSize="@dimen/_30dp" />
 
-        <TextView
+        <EditText
             android:id="@+id/et_step"
             android:layout_width="@dimen/_600dp"
             android:layout_height="@dimen/_100dp"
             android:layout_marginTop="@dimen/_40dp"
             android:background="@drawable/cloud_sync_btn_bg"
             android:gravity="center_vertical"
+            android:focusable="true"
             android:hint="@string/sensor_step_txt"
             android:paddingStart="@dimen/_30dp"
+            android:inputType="number"
+            android:nextFocusDown="@id/et_step"
             android:textColor="@color/white"
             android:textColorHint="@color/white"
             android:textSize="@dimen/_30dp" />