 
             case 5:
                 cell.textLabel?.text = "Sensorstart vor"
-                if let sennsorData = sennsorData {
+                if let sennsorData = sensorData {
                     let minutes = sennsorData.minutesSinceStart
                     let days = Int( Double(minutes) / 24.0 / 60.0 )
                     let hours = Int( Double(minutes) / 60.0 ) - days*24

            case 1:
                var crcString = String()
                var color = UIColor()
                if let sensorData = sennsorData {
                    crcString += ", crcs: \(sensorData.hasValidHeaderCRC), \(sensorData.hasValidBodyCRC), \(sensorData.hasValidFooterCRC)"
                    color = colorForSensorState( (sensorData.hasValidHeaderCRC && sensorData.hasValidBodyCRC && sensorData.hasValidFooterCRC) )
                } else {

    var coreDataStack = CoreDataStack()
    var simbleeManager = SimbleeManager()
    
    var sensorData: SensorData?
    var trendMeasurements: [Measurement]?
    var historyMeasurements: [Measurement]?
    var batteryVoltage = 0.0
