RF remotes generally work this way: The originating signal is sent from the remote as RF (radio frequency.) In the case of the MX-950 in my theater that's 418MHz, a very stable and reliable frequency band.
By nature, propane is clear and contains no scent at all. For safety purposes propane. companies add a substance known as ethyl-mercaptan to the propane fuel. Ethyl-. mercaptan has a strong rotten egg, or skunk-like scent, which allows the consumer to. smell it in the case of a leak.
How to safely use gas and propane. 1  Continue to do what you are doing right this moment; learn about these things. 2  Be aware that any fuel gas odor may indicate a dangerous leak. If you smell even a slight amount of gas take action immediately!