Can any tell me how add two needles in Gauge graph Using Google charts - google-visualization

Question

I want to display two values in a single gauge graph using two needles. How can I do that.
Can any one please suggest me of doing it.
I have tried with following code But I am not success full.
And I got this following error.
GET http://5.39.186.164/%7B%22cols%22:[%7B%22label%22:%22Q7%22,%22type%22:%22nu…r%22%7D],%22rows%22:[%7B%22c%22:[%7B%22v%22:43%7D,%7B%22v%22:21%7D]%7D]%7D 404 (Not Found)
<!--Load the AJAX API -->
<script type="text/javascript" src="//www.google.com/jsapi"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
google.load('visualization', '1', {packages: ['gauge']});
</script>
<script type="text/javascript">
var gauge;
var gaugeData;
var gaugeOptions;
function drawGauge() {
//var response = '<?php echo json_encode($response); ?>'; alert(' hi ' + response);
//var obj = eval ("(" + response + ")");
$.getJSON('<?php echo json_encode($response); ?>', function(json) {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Label');
data.addColumn('number', 'Value');
for (x in json) {
data.addRow([x, json[x]]);
}
//gaugeData = new google.visualization.DataTable(response);
gauge = new google.visualization.Gauge(document.getElementById('gauge'));
gaugeOptions = {
width: 2000,
height: 150,
greenFrom: 0,
greenTo: 50,
redFrom: 75,
redTo: 100,
yellowFrom:50,
yellowTo: 75,
minorTicks: 5
};
gauge.draw(gaugeData, gaugeOptions);
//chart.draw(data, options);
});
}
google.load('visualization', '1', {packages:['gauge'], callback: drawGauge});