Gas detection

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/3336417/charts/1?bgcolor=%23ffffff&color=%23d62020&dynamic=true&max=4000&min=2000&results=60&type=column"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/3336417/charts/2?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=60&type=line"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/3336417/status/recent"></iframe>