Test

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2964596/charts/1?bgcolor=%23ffffff&color=%23d62020&days=2&dynamic=true&results=60&title=Vakku&type=line&yaxismax=5.0&yaxismin=2.5"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2964596/widgets/1096062"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2964596/widgets/1096065"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/2964596/charts/3?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=60&type=line&update=15"></iframe>