diff --git a/examples/OneOpenAir/OneOpenAir.ino b/examples/OneOpenAir/OneOpenAir.ino
index 6afd485..6d9e653 100644
--- a/examples/OneOpenAir/OneOpenAir.ino
+++ b/examples/OneOpenAir/OneOpenAir.ino
@@ -571,7 +571,7 @@ static void openAirInit(void) {
       fwMode = FW_MODE_O_1PP;
     } else {
       Serial.println("Can not detect SGP run mode 'O-1PS'");
-      fwMode = FW_MDOE_O_1PS;
+      fwMode = FW_MODE_O_1PS;
     }
   }
 
diff --git a/src/AgValue.cpp b/src/AgValue.cpp
index c42e325..bf3fe3a 100644
--- a/src/AgValue.cpp
+++ b/src/AgValue.cpp
@@ -71,7 +71,7 @@ String Measurements::toString(bool localServer, AgFirmwareMode fwMode, int rssi,
           (this->hum_1 + this->hum_2) / 2.0f);
     }
 
-    if (fwMode == FW_MDOE_O_1PS || fwMode == FW_MODE_O_1PST) {
+    if (fwMode == FW_MODE_O_1PS || fwMode == FW_MODE_O_1PST) {
       if (config->hasSensorPMS1) {
         root["pm01"] = this->pm01_1;
         root["pm02"] = this->pm25_1;
diff --git a/src/App/AppDef.cpp b/src/App/AppDef.cpp
index 179ab63..ad2d75d 100644
--- a/src/App/AppDef.cpp
+++ b/src/App/AppDef.cpp
@@ -10,8 +10,10 @@ const char *AgFirmwareModeName(AgFirmwareMode mode) {
     return "O-1PPT";
   case FW_MODE_O_1PST:
     return "O-1PST";
-  case FW_MDOE_O_1PS:
+  case FW_MODE_O_1PS:
     return "0-1PS";
+  case FW_MODE_O_1P:
+    return "O-1P";
   default:
     break;
   }
diff --git a/src/App/AppDef.h b/src/App/AppDef.h
index 4292c04..7009f92 100644
--- a/src/App/AppDef.h
+++ b/src/App/AppDef.h
@@ -95,7 +95,8 @@ enum AgFirmwareMode {
   FW_MODE_O_1PST, /** PMS5003T, S8 and SGP41 */
   FW_MODE_O_1PPT, /** PMS5003T_1, PMS5003T_2, SGP41 */
   FW_MODE_O_1PP,  /** PMS5003T_1, PMS5003T_2 */
-  FW_MDOE_O_1PS   /** PMS5003T, S8 */
+  FW_MODE_O_1PS,  /** PMS5003T, S8 */
+  FW_MODE_O_1P,   /** PMS5003T */
 };
 const char *AgFirmwareModeName(AgFirmwareMode mode);