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 1dce91e..e1b43bd 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
@@ -57,7 +57,7 @@ fun saveLowThreshold(gasType: String, value: Float, localGasUnit: String) {
 fun saveHighThreshold(gasType: String, value: Float, localGasUnit: String) {
     var localValue = value
     if (O2 == gasType || CH4_H2 == gasType || VOCS == gasType) {
-        MMKVUtils.put(getLowThresHoldKey(gasType), localValue)
+        MMKVUtils.put(getHighThresHoldKey(gasType), localValue)
     } else {
         if (UNIT_MGM3 == localGasUnit) {
             val typeEnum = getGasTypeEnumByDesc(gasType)