diff --git a/java_console/models/src/main/java/com/rusefi/core/SensorCentral.java b/java_console/models/src/main/java/com/rusefi/core/SensorCentral.java
index 32f15d4af9..c377e42cd2 100644
--- a/java_console/models/src/main/java/com/rusefi/core/SensorCentral.java
+++ b/java_console/models/src/main/java/com/rusefi/core/SensorCentral.java
@@ -11,9 +11,9 @@ import java.util.concurrent.CopyOnWriteArrayList;
  * <p/>
  * Date: 1/6/13
  * Andrey Belomutskiy, (c) 2013-2020
+ * @see SensorLog
  */
 public class SensorCentral implements ISensorCentral {
-    public static final String RPM_KEY = "rpm";
     private static final SensorCentral INSTANCE = new SensorCentral();
 
     private final SensorsHolder sensorsHolder = new SensorsHolder();
diff --git a/java_console/ui/src/main/java/com/rusefi/sensor_logs/SensorLogger.java b/java_console/ui/src/main/java/com/rusefi/sensor_logs/SensorLogger.java
index b213a155fc..e5a4d5d6b1 100644
--- a/java_console/ui/src/main/java/com/rusefi/sensor_logs/SensorLogger.java
+++ b/java_console/ui/src/main/java/com/rusefi/sensor_logs/SensorLogger.java
@@ -82,14 +82,12 @@ public class SensorLogger {
             Sensor.engineMakeCodeNameCrc16,
             Sensor.tuneCrc16,
     };
-    private final UIContext uiContext;
 
-    private List<SensorLog> sensorLogs;
+    private final List<SensorLog> sensorLogs;
 
     private boolean isInitialized;
 
     public SensorLogger(UIContext uiContext) {
-        this.uiContext = uiContext;
         sensorLogs = Arrays.asList(new PlainTextSensorLog(uiContext), new BinarySensorLogRestarter());
     }