diff --git a/DeviceTest/DeviceTestDlg.cs b/DeviceTest/DeviceTestDlg.cs
index 57be4d3f4..8ed370351 100644
--- a/DeviceTest/DeviceTestDlg.cs
+++ b/DeviceTest/DeviceTestDlg.cs
@@ -56,7 +56,10 @@ namespace DeviceTest
 
 
 		static TBF.Boxes.FloatBox floatBox;
-		static Event evnt;
+        static TBF.Boxes.DoubleBox dblBox1;
+        static TBF.Boxes.DoubleBox dblBox2;
+        static TBF.Boxes.DoubleBox dblBox3;
+        static Event evnt;
 
 
 		static DeviceTestDlg()
@@ -657,7 +660,13 @@ namespace DeviceTest
 				operation1 = (tbfComponent1forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(10);
 				operation2 = (tbfComponent1forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(20);
 			}
-			else if (tbfComponent1forOp is TBF.BenchControl.Modbus.TankSelector.TankSelector)
+            else if (tbfComponent1forOp is TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter)
+            {
+                operation1 = (tbfComponent1forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadLevelOp(ref dblBox1);
+                operation2 = (tbfComponent1forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadVolumeOp(ref dblBox2);
+                operation3 = (tbfComponent1forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadTempOp(ref dblBox3);
+            }
+            else if (tbfComponent1forOp is TBF.BenchControl.Modbus.TankSelector.TankSelector)
 			{
 				//operation1 = (tbfComponent1forOp as TBF.BenchControl.Modbus.TankSelector.TankSelector).SelectTankOp(1);
 				//operation2 = (tbfComponent1forOp as TBF.BenchControl.Modbus.TankSelector.TankSelector).SelectTankOp(2);
@@ -681,10 +690,16 @@ namespace DeviceTest
 			}
 			else if (tbfComponent2forOp is TBF.BenchControl.Modbus.Easytherm.Easytherm)
 			{
-				operation21 = (tbfComponent1forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(10);
-				operation22 = (tbfComponent1forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(20);
+				operation21 = (tbfComponent2forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(10);
+				operation22 = (tbfComponent2forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(20);
 			}
-			else if (tbfComponent2forOp is TBF.BenchControl.Modbus.TankSelector.TankSelector)
+            else if (tbfComponent2forOp is TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter)
+            {
+                operation21 = (tbfComponent2forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadLevelOp(ref dblBox1);
+                operation22 = (tbfComponent2forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadVolumeOp(ref dblBox2);
+                operation23 = (tbfComponent2forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadTempOp(ref dblBox3);
+            }
+            else if (tbfComponent2forOp is TBF.BenchControl.Modbus.TankSelector.TankSelector)
 			{
 				//operation21 = (tbfComponent2forOp as TBF.BenchControl.Modbus.TankSelector.TankSelector).SelectTankOp(1);
                 //operation22 = (tbfComponent2forOp as TBF.BenchControl.Modbus.TankSelector.TankSelector).SelectTankOp(2);
@@ -708,10 +723,16 @@ namespace DeviceTest
 			}
 			else if (tbfComponent3forOp is TBF.BenchControl.Modbus.Easytherm.Easytherm)
 			{
-				operation31 = (tbfComponent1forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(10);
-				operation32 = (tbfComponent1forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(20);
+				operation31 = (tbfComponent3forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(10);
+				operation32 = (tbfComponent3forOp as TBF.BenchControl.Modbus.Easytherm.Easytherm).SetTemperatureOp(20);
 			}
-			else if (tbfComponent3forOp is TBF.BenchControl.Modbus.TankSelector.TankSelector)
+            else if (tbfComponent3forOp is TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter)
+            {
+                operation31 = (tbfComponent3forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadLevelOp(ref dblBox1);
+                operation32 = (tbfComponent3forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadVolumeOp(ref dblBox2);
+                operation33 = (tbfComponent3forOp as TBF.BenchControl.Modbus.UltrasoundLevelMeter.LevelMeter).ReadTempOp(ref dblBox3);
+            }
+            else if (tbfComponent3forOp is TBF.BenchControl.Modbus.TankSelector.TankSelector)
 			{
 				//operation31 = (tbfComponent3forOp as TBF.BenchControl.Modbus.TankSelector.TankSelector).SelectTankOp(1);
 				//operation32 = (tbfComponent3forOp as TBF.BenchControl.Modbus.TankSelector.TankSelector).SelectTankOp(2);
@@ -720,11 +741,14 @@ namespace DeviceTest
 			}
 
 
-			while (workerThreadRunning)
+            int time = 0;
+            while (workerThreadRunning)
 			{
 				Thread.Sleep(1000);
 
-				if (workerThreadRunning)
+                StateMachine.Time = ++time;
+
+                if (workerThreadRunning)
 				{
 					foreach (var d in tbfDevices) d.RunDeviceBefore();
 
diff --git a/DeviceTest/Program.cs b/DeviceTest/Program.cs
index 5720fe88c..2f17f29c7 100644
--- a/DeviceTest/Program.cs
+++ b/DeviceTest/Program.cs
@@ -72,10 +72,10 @@ namespace DeviceTest
 			}
 
 			/// Configure and start logging
-			log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(LocAppDataDir + log4netConfigFName));
+			log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(Path.Combine(LocAppDataDir, log4netConfigFName)));
 			log = LogManager.GetLogger(typeof(Program));
 			log.Fatal("--------------------------------------------------------------------------------");
-			log.Fatal(string.Format("TBF ver.{0}", Version));
+			log.FatalFormat("DeviceTest ver.{0}", Version);
 
 			Application.EnableVisualStyles();
 			Application.SetCompatibleTextRenderingDefault(false);
diff --git a/TBF/BenchControl/Events.cs b/TBF/BenchControl/Events.cs
index 316deba1b..830a96f30 100644
--- a/TBF/BenchControl/Events.cs
+++ b/TBF/BenchControl/Events.cs
@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2013-2017 Sensus Metering Systems
+/// Copyright (c) 2013-2018 Sensus Slovensko a.s.
 ///
 namespace TBF.BenchControl
 {
@@ -93,6 +93,8 @@ namespace TBF.BenchControl
 		TempInDone,
 		TempOutDone,
 		TempDivDone,
+        LevelDone,
+        VolumeDone,
 		FlowMeasurementDone,
 		FlowReached,
 		PositionReached,
diff --git a/TBF/BenchControl/GenericDevices/ILevelMeter.cs b/TBF/BenchControl/GenericDevices/ILevelMeter.cs
new file mode 100644
index 000000000..2f26a0f46
--- /dev/null
+++ b/TBF/BenchControl/GenericDevices/ILevelMeter.cs
@@ -0,0 +1,37 @@
+///
+/// Copyright (c) 2018 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections.Generic;
+using Config.Entities;
+using TBF.BenchControl.Generic;
+using TBF.Boxes;
+
+namespace TBF.BenchControl.GenericDevices
+{
+    /// <summary>
+    /// Basic level meter functions
+    /// </summary>
+    public interface ILevelMeter
+    {
+        /// <summary>
+        /// Measurement correction table
+        /// </summary>
+        IList<MeasurementCorrection> Corrections { get; }
+
+        /// <summary>
+        /// Events:  LevelDone, Error
+        /// </summary>
+        /// <param name="level">Reference to a variable for the measured level in mm</param>
+        /// <returns>ReadLevelOp instance reference casted to IOperaton</returns>
+        IOperation ReadLevelOp(ref DoubleBox level);
+
+        /// <summary>
+        /// Events:  levelDone, Error
+        /// </summary>
+        /// <param name="level">Reference to a variable for the measured level in mm</param>
+        /// <param name="levelDone">Event returned when measurement done</param>
+        /// <returns>ReadLevelOp instance reference casted to IOperaton</returns>
+        IOperation ReadLevelOp(ref DoubleBox level, Event levelDone);
+    }
+}
diff --git a/TBF/BenchControl/GenericDevices/IVolumeMeter.cs b/TBF/BenchControl/GenericDevices/IVolumeMeter.cs
new file mode 100644
index 000000000..e90a02e40
--- /dev/null
+++ b/TBF/BenchControl/GenericDevices/IVolumeMeter.cs
@@ -0,0 +1,34 @@
+///
+/// Copyright (c) 2018 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections.Generic;
+using Config.Entities;
+using TBF.BenchControl.Generic;
+using TBF.Boxes;
+
+namespace TBF.BenchControl.GenericDevices
+{
+    public interface IVolumeMeter
+    {
+        /// <summary>
+        /// Measurement correction table
+        /// </summary>
+        IList<MeasurementCorrection> Corrections { get; }
+
+        /// <summary>
+        /// Events:  VolumeDone, Error
+        /// </summary>
+        /// <param name="volume">Reference to a variable for the measured volume in l</param>
+        /// <returns>ReadPressureOp instance reference casted to IOperaton</returns>
+        IOperation ReadVolumeOp(ref DoubleBox volume);
+
+        /// <summary>
+        /// Events:  volumeDone, Error
+        /// </summary>
+        /// <param name="volume">Reference to a variable for the measured volume in l</param>
+        /// <param name="volumeDone">Event returned when measurement done</param>
+        /// <returns>ReadPressureOp instance reference casted to IOperaton</returns>
+        IOperation ReadVolumeOp(ref DoubleBox volume, Event volumeDone);
+    }
+}
diff --git a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeter.cs b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeter.cs
index 726741139..470c67639 100644
--- a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeter.cs
+++ b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeter.cs
@@ -6,10 +6,12 @@ using System.Collections.Generic;
 using log4net;
 using TBF.BenchControl.Generic;
 using TBF.Boxes;
+using Config.Entities;
+using System.Diagnostics;
 
 namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
 {
-	public class LevelMeter : ComponentBase, GenericDevices.IPressureMeter, IDevice
+    public class LevelMeter : ComponentBase, GenericDevices.ILevelMeter, GenericDevices.IVolumeMeter, GenericDevices.ITempMeter, IDevice
 	{
 		private static readonly ILog log = LogManager.GetLogger(typeof(LevelMeter));
         public override string ToString() { return string.Format("LevelMeter({0})", Cfg.ToString(1)); }
@@ -17,9 +19,22 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
 		readonly LevelMeterCfg myCfg;
 	    readonly GenericDevices.IModbus modbus;
 
-        private float receivedLevel;
+        /// <summary>The state of the measurement</summary>
+        MsrmntState msrmntState;
+
+        ///
+        /// Measured values when MsrmntState == MsrmntState.Valid
+        ///
+        double distance;        /// [mm]
+        double level;           /// [mm]
+        double percentage;      /// [%]
+        double volume;          /// [l]
+        double temperature;     /// [°C]
+        ushort state;
+
+        /// <summary>Measurement time stamp when MsrmntState == MsrmntState.Valid</summary>
+        int msrmntTimeStamp;
 
-        const ushort WatchdogBitMask = 0x0010;
 
 		public LevelMeter()
 		{
@@ -42,38 +57,37 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
         /// <summary>Initialize this device</summary>
         public void Initialize()
         {
+            if (myCfg.DebugLevel == DebugMode.Simulate)
+            {
+                distance = 200.0;
+                level = 0;
+                percentage = 0;
+                volume = 0;
+                temperature = 20.0;
+                state = 0;
+
+                msrmntTimeStamp = StateMachine.Time;
+                msrmntState = MsrmntState.Valid;
+                return;
+            }
+
+            msrmntState = MsrmntState.Busy;
+
+            log.FatalFormat("Successfully initialized device {0}", ToString());
         }
 
 
-		/// <summary>
-		/// Returns the water pressure
-		/// </summary>
-		/// <returns>Pressure in mBar</returns>
-		public float ReadLevel()
-		{
-			return (float)Config.Units.ConvertFrom(Config.Unit.mm, receivedLevel);
-		}
+        public double ReadLevel() { return level; }                 /// Returns water level in mm
+        public double ReadVolume() { return volume; }               /// Returns volume in l
+        public double ReadTemperature() { return temperature; }     /// Returns temperature in °C
 
-		/// <summary>
-		/// Events:  PressureDone, Error
-		/// </summary>
-		/// <param name="pressure">Reference to a variable for the pressure in Bar</param>
-		/// <returns>ReadPressureOp instance reference casted to IOperaton</returns>
-		public IOperation ReadPressureOp(ref FloatBox pressure)
-		{
-			return new ReadLevelOp(this, ref pressure);
-		}
+        public IOperation ReadLevelOp(ref DoubleBox level) { return new ReadLevelOp(this, ref level); }
+        public IOperation ReadVolumeOp(ref DoubleBox volume) { return new ReadVolumeOp(this, ref volume); }
+        public IOperation ReadTempOp(ref DoubleBox temperature) { return new ReadTempOp(this, ref temperature); }
 
-		/// <summary>
-		/// Events:  pressureDone, Error
-		/// </summary>
-		/// <param name="pressure">Reference to a variable for the pressure in Bar</param>
-		/// <param name="pressureDone">Event returned when measurement done</param>
-		/// <returns>ReadPressureOp instance reference casted to IOperaton</returns>
-		public IOperation ReadPressureOp(ref FloatBox pressure, Event pressureDone)
-		{
-			return new ReadLevelOp(this, ref pressure, pressureDone);
-		}
+        public IOperation ReadLevelOp(ref DoubleBox level, Event eventDone) { return new ReadLevelOp(this, ref level, eventDone); }
+        public IOperation ReadVolumeOp(ref DoubleBox volume, Event eventDone) { return new ReadVolumeOp(this, ref volume, eventDone); }
+        public IOperation ReadTempOp(ref DoubleBox temperature, Event eventDone) { return new ReadTempOp(this, ref temperature, eventDone); }
 
 
         /// <summary>Run this device</summary>
@@ -82,33 +96,86 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
             if (myCfg.DebugLevel == Config.Entities.DebugMode.Simulate ||
                 myCfg.DebugLevel == Config.Entities.DebugMode.FailureDuringOperation)
             {
+                msrmntTimeStamp = StateMachine.Time;
                 return;
             }
 
             if (modbus.ReceivedTelegrams[myCfg.ModbusAddress].Count > 0)
 			{
 				byte[] telegram = modbus.ReceivedTelegrams[myCfg.ModbusAddress].Dequeue();
-				if (telegram.Length == 9 && telegram[1] == 4 && telegram[2] == 4)
-				{
-					/// Swap byte order
-					byte t1 = telegram[3];
-					byte t2 = telegram[4];
-					byte t3 = telegram[5];
-					byte t4 = telegram[6];
-					telegram[3] = t4;
-					telegram[4] = t3;
-					telegram[5] = t2;
-					telegram[6] = t1;
 
-					receivedLevel = System.BitConverter.ToSingle(telegram, 3);
+				if (telegram.Length == 15 && telegram[1] == 3 && telegram[2] == 10)
+				{
+                    distance = (double)(256 * telegram[3] + telegram[4]);
+                    level = (double)(256 * telegram[5] + telegram[6]);
+                    percentage = (double)(256 * telegram[7] + telegram[8]);
+                    temperature = (double)256 * telegram[9] + telegram[10];
+                    state = (ushort)(256 * telegram[11] + telegram[12]);
+                    volume = 0;     /// TODO
+
+                    string line = string.Format("dist={0} mm level={1} mm, %={2} %, temp={3} °C, volume={4} l, state={5}",
+                                                distance, level, percentage, temperature, volume, state);
+                    log.Debug(line);
+                    Debug.WriteLine(line);
 				}
 			}
 
-            if ((StateMachine.Time % 3) == (myCfg.ModbusAddress % 3))          /// Each 3 seconds
+
+            byte[] msg = new byte[8];   /// Buffer for data to send
+
+            if ((StateMachine.Time % 3) == 0)           /// Each 3 seconds
             {
-                const byte Function = 4;	/// Read input registers
-                const ushort Address = 0;	/// Pressure
-                modbus.SendMessage(myCfg.ModbusAddress, Function, Address, 2);
+                ///
+                /// Read distance, level, quantity, percentage and temperature in IEEE754 (DWORD-s)
+                /// 
+                UInt16 regAddr = 100;
+                UInt16 count = 5;
+
+                /// Prepare data to be sent
+                msg[0] = myCfg.ModbusAddress;
+                msg[1] = 3;                             /// CMD = 
+                msg[2] = (byte)(regAddr >> 8);		    /// Control Word Hi
+                msg[3] = (byte)(regAddr & 0xFF);	    /// Control Word Lo
+                msg[4] = (byte)(count >> 8);		    /// Serial Com Reference Hi
+                msg[5] = (byte)(count & 0xFF);		    /// Serial Com Reference Lo
+
+                modbus.SendMessage(msg);
+            }
+            else if ((StateMachine.Time % 3) == 1)      /// Each 3 seconds
+            {
+                /////
+                ///// Read STATUS1
+                ///// 
+                //UInt16 regAddr = 104;
+                //UInt16 count = 1;
+
+                ///// Prepare data to be sent
+                //msg[0] = myCfg.ModbusAddress;
+                //msg[1] = 3;                           /// CMD = 
+                //msg[2] = (byte)(regAddr >> 8);		/// Control Word Hi
+                //msg[3] = (byte)(regAddr & 0xFF);	    /// Control Word Lo
+                //msg[4] = (byte)(count >> 8);		    /// Serial Com Reference Hi
+                //msg[5] = (byte)(count & 0xFF);		/// Serial Com Reference Lo
+
+                //modbus.SendMessage(msg);
+            }
+            else if ((StateMachine.Time % 3) == 2)      /// Each 3 seconds
+            {
+                /////
+                ///// Read distance, level, quantity, percentage and temperature in IEEE754 (DWORD-s)
+                ///// 
+                //UInt16 regAddr = 300;
+                //UInt16 count = 10;
+
+                ///// Prepare data to be sent
+                //msg[0] = myCfg.ModbusAddress;
+                //msg[1] = 3;                             /// CMD = 
+                //msg[2] = (byte)(regAddr >> 8);		    /// Control Word Hi
+                //msg[3] = (byte)(regAddr & 0xFF);	    /// Control Word Lo
+                //msg[4] = (byte)(count >> 8);		    /// Serial Com Reference Hi
+                //msg[5] = (byte)(count & 0xFF);		    /// Serial Com Reference Lo
+
+                //modbus.SendMessage(msg);
             }
         }
 
diff --git a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs
index 2203889a9..d24deb539 100644
--- a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs
+++ b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs
@@ -37,7 +37,7 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
 		///
 		/// Serialized parameters 
 		///
-		public byte ModbusAddress;		/// 1..255
+		public byte ModbusAddress;		/// 1..247
 
 		/// Private parameterless constructor invoked by all other (public) constructors
 		LevelMeterCfg() {}
@@ -55,7 +55,7 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
 
         public void InitializeAll()
         {
-            ModbusAddress = 49;
+            ModbusAddress = 1;
         }
 
 
@@ -111,8 +111,9 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
             switch (i)
             {
                 case 0:
-                    if (int.TryParse(strValue, out dummy) && dummy >= 0 && dummy <= 255) return true;
-                    break;
+                    if (int.TryParse(strValue, out dummy) && dummy >= 1 && dummy <= 247) return true;
+                    message = ParamName(i) + " is invalid. Address range is 1 .. 247";
+                    return false;
                 default:
                     message = "Invalid index";
                     return false;
diff --git a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadLevelOp.cs b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadLevelOp.cs
index 81c4e8f09..0785400cf 100644
--- a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadLevelOp.cs
+++ b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadLevelOp.cs
@@ -17,25 +17,25 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
 		readonly Event eventDone;
 
         /// Measured value
-        FloatBox level;
+        DoubleBox level;
 
 		/// <summary>
-		/// Events:  PressureInDone, PressureOutDone or Error
+		/// Events:  LevelDone or Error
 		/// </summary>
-		/// <param name="levelMeter">Pressure meter reference</param>
-		/// <param name="pressure">Reference to the measured pressure variable, value is in bar</param>
+		/// <param name="levelMeter">Water level meter reference</param>
+		/// <param name="level">Reference to the measured level variable, value is in mm</param>
 		/// <param name="eventDone">Event to be returned by Run() when completed OK</param>
-		public ReadLevelOp(LevelMeter levelMeter, ref FloatBox pressure, Event eventDone)
+        public ReadLevelOp(LevelMeter levelMeter, ref DoubleBox level, Event eventDone)
         {
             if (levelMeter == null) throw new ArgumentNullException("levelMeter");
             this.levelMeter = levelMeter;
-            this.level = pressure;
+            this.level = level;
             this.eventDone = eventDone;
 
 			log.Debug(this.ToString());
         }
-        public ReadLevelOp(LevelMeter pressureMeter, ref FloatBox pressure)
-			: this(pressureMeter, ref pressure, Event.PressureDone)
+        public ReadLevelOp(LevelMeter levelMeter, ref DoubleBox level)
+			: this(levelMeter, ref level, Event.LevelDone)
 		{
 		}
 
@@ -48,7 +48,7 @@ namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
 
 		/// <summary>Run this operation</summary>
 		/// <returns>
-		///		Event.PressureInDone or Event.PressureOutDone
+		///		Event.LevelDone
 		/// </returns>
 		public Event Run()
 		{
diff --git a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadTempOp.cs b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadTempOp.cs
new file mode 100644
index 000000000..552ccd903
--- /dev/null
+++ b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadTempOp.cs
@@ -0,0 +1,64 @@
+///
+/// Copyright (c) 2018 Sensus Slovensko a.s.
+///
+using System;
+using log4net;
+using TBF.Boxes;
+
+namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
+{
+	public class ReadTempOp : IOperation
+	{
+		private static readonly ILog log = LogManager.GetLogger(typeof(ReadTempOp));
+        public override string ToString() { return string.Format("ReadTempOp(.,{0},.)", eventDone); }
+
+		/// Set by the constructor
+        readonly LevelMeter levelMeter;
+		readonly Event eventDone;
+
+        /// Measured value
+        DoubleBox temperature;
+
+		/// <summary>
+		/// Events:  eventDone or Error
+		/// </summary>
+		/// <param name="levelMeter">Water temperature meter reference</param>
+		/// <param name="temperature">Reference to the measured temperature variable, value is in l</param>
+		/// <param name="eventDone">Event to be returned by Run() when completed OK</param>
+        public ReadTempOp(LevelMeter levelMeter, ref DoubleBox temperature, Event eventDone)
+        {
+            if (levelMeter == null) throw new ArgumentNullException("levelMeter");
+            this.levelMeter = levelMeter;
+            this.temperature = temperature;
+            this.eventDone = eventDone;
+
+			log.Debug(this.ToString());
+        }
+        public ReadTempOp(LevelMeter levelMeter, ref DoubleBox temperature)
+            : this(levelMeter, ref temperature, Event.TempDone)
+		{
+		}
+
+
+		/// <summary>Start this operation</summary>
+		public void Start()
+        {
+            temperature.Val = levelMeter.ReadTemperature();
+        }
+
+		/// <summary>Run this operation</summary>
+		/// <returns>
+		///		Event.temperatureDone
+		/// </returns>
+		public Event Run()
+		{
+            temperature.Val = levelMeter.ReadTemperature();
+			return eventDone;
+		}
+
+		/// <summary>Stop this operation</summary>
+		public void Stop()
+		{
+		}
+	}
+}
diff --git a/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadVolumeOp.cs b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadVolumeOp.cs
new file mode 100644
index 000000000..d27b82a09
--- /dev/null
+++ b/TBF/BenchControl/Modbus/UltrasoundLevelMeter/ReadVolumeOp.cs
@@ -0,0 +1,64 @@
+///
+/// Copyright (c) 2018 Sensus Slovensko a.s.
+///
+using System;
+using log4net;
+using TBF.Boxes;
+
+namespace TBF.BenchControl.Modbus.UltrasoundLevelMeter
+{
+	public class ReadVolumeOp : IOperation
+	{
+		private static readonly ILog log = LogManager.GetLogger(typeof(ReadVolumeOp));
+        public override string ToString() { return string.Format("ReadVolumeOp(.,{0},.)", eventDone); }
+
+		/// Set by the constructor
+        readonly LevelMeter levelMeter;
+		readonly Event eventDone;
+
+        /// Measured value
+        DoubleBox volume;
+
+		/// <summary>
+		/// Events:  VolumeDone or Error
+		/// </summary>
+		/// <param name="levelMeter">Water volume meter reference</param>
+		/// <param name="volume">Reference to the measured volume variable, value is in l</param>
+		/// <param name="eventDone">Event to be returned by Run() when completed OK</param>
+        public ReadVolumeOp(LevelMeter levelMeter, ref DoubleBox volume, Event eventDone)
+        {
+            if (levelMeter == null) throw new ArgumentNullException("levelMeter");
+            this.levelMeter = levelMeter;
+            this.volume = volume;
+            this.eventDone = eventDone;
+
+			log.Debug(this.ToString());
+        }
+        public ReadVolumeOp(LevelMeter levelMeter, ref DoubleBox volume)
+			: this(levelMeter, ref volume, Event.VolumeDone)
+		{
+		}
+
+
+		/// <summary>Start this operation</summary>
+		public void Start()
+        {
+            volume.Val = levelMeter.ReadVolume();
+        }
+
+		/// <summary>Run this operation</summary>
+		/// <returns>
+		///		Event.VolumeDone
+		/// </returns>
+		public Event Run()
+		{
+            volume.Val = levelMeter.ReadVolume();
+			return eventDone;
+		}
+
+		/// <summary>Stop this operation</summary>
+		public void Stop()
+		{
+		}
+	}
+}
diff --git a/TBF/BenchControl/StateMachine.cs b/TBF/BenchControl/StateMachine.cs
index 83501f9e7..73382f5dd 100644
--- a/TBF/BenchControl/StateMachine.cs
+++ b/TBF/BenchControl/StateMachine.cs
@@ -121,7 +121,11 @@ namespace TBF.BenchControl
         /// <summary>
         /// Current state name
         /// </summary>
-        public static int Time { get { return currentTimeSec; } }
+        public static int Time
+        {
+            get { return currentTimeSec; }
+            set { currentTimeSec = value; }
+        }
 
         /// <summary>
         /// Constructor
diff --git a/TBF/TBF.csproj b/TBF/TBF.csproj
index f3ac0cccd..9008dd7f8 100644
--- a/TBF/TBF.csproj
+++ b/TBF/TBF.csproj
@@ -516,6 +516,7 @@
     <Compile Include="BenchControl\GenericDevices\ICameraDisplay.cs" />
     <Compile Include="BenchControl\GenericDevices\IDataEntryForCamera.cs" />
     <Compile Include="BenchControl\GenericDevices\IErrorFlags.cs" />
+    <Compile Include="BenchControl\GenericDevices\ILevelMeter.cs" />
     <Compile Include="BenchControl\GenericDevices\IPlotter.cs" />
     <Compile Include="BenchControl\GenericDevices\IRoiForFixedStart.cs" />
     <Compile Include="BenchControl\GenericDevices\IScaleCfg.cs" />
@@ -530,6 +531,7 @@
     <Compile Include="BenchControl\GenericDevices\ITankDraining.cs" />
     <Compile Include="BenchControl\GenericDevices\ITankDrainingCfg.cs" />
     <Compile Include="BenchControl\GenericDevices\ITestMethodWith2ndPass.cs" />
+    <Compile Include="BenchControl\GenericDevices\IVolumeMeter.cs" />
     <Compile Include="BenchControl\Hart\Common\Factory.cs" />
     <Compile Include="BenchControl\Hart\Common\Hart.cs" />
     <Compile Include="BenchControl\Hart\Common\HartCfg.cs" />
@@ -658,6 +660,8 @@
     <Compile Include="BenchControl\Modbus\UltrasoundLevelMeter\LevelMeter.cs" />
     <Compile Include="BenchControl\Modbus\UltrasoundLevelMeter\LevelMeterCfg.cs" />
     <Compile Include="BenchControl\Modbus\UltrasoundLevelMeter\ReadLevelOp.cs" />
+    <Compile Include="BenchControl\Modbus\UltrasoundLevelMeter\ReadTempOp.cs" />
+    <Compile Include="BenchControl\Modbus\UltrasoundLevelMeter\ReadVolumeOp.cs" />
     <Compile Include="BenchControl\Network\Adapter\AdapterInfo.cs" />
     <Compile Include="BenchControl\Network\Adapter\Netadapter.cs" />
     <Compile Include="BenchControl\Network\Adapter\Factory.cs" />