1) Air supplier:Gas 2) Used in gas range oven,gas heater with oxygen depletion sensor.

It will automatically cut off gas supply when carbon dioxide reaches a certain concentration which assures one's saftey.

This product is a oxygen depletion sensor device, that is, in a confined space, when the amount of carbon dioxide reaches a certain concentration, the device will automatically cut off the gas source, thus timely ensuring personal safety. This way, people can freely enjoy the warmth in the cold winter days, while no longer having to worry about potential danger.

Gas stove burner JWP680914