Studna

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/435076/charts/1?bgcolor=%23ffffff&color=%23d62020&days=14&dynamic=true&results=24&type=line"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/435076/charts/2?bgcolor=%23ffffff&color=%23d62020&days=30&dynamic=true&median=daily&type=line"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/435076/charts/3?bgcolor=%23ffffff&color=%23d62020&days=365&dynamic=true&median=daily&type=line"></iframe>