For this gauge we will need to read data from thingspeak.com and this require an API Read Key that can be generated from the API KEYS menu.
Now go to the Plugin menu from the Main Menu:
and click on "New Plugin"
and select the Google Gauge and "Create Plugin".
// set your channel id here
var channel_id = 87654;
// set your channel's read api key here if necessary
var api_key = 'Q68B3YMORI9S49JJ';
// maximum value for the gauge
var max_gauge_value = 100;
// name of the gauge
var gauge_name = 'My_gauge_name';
To include the new created gauge in other page you can use the HTML TAG <IFRAME>.
<iframe width="330" height="360" style="border: 1px solid #cccccc;" src="http://api.thingspeak.com/plugins/2345" ></iframe>