I have GAP IID TOOL and I am trying add Additional Key. Trying buy from Aliexpress and seller asking me the frequency of key. whiteout using any additional tool. How can I find the frequency of my current key? any suggestion please ?

 

In the US it is 315Mhz for an LR3/4 Series (according to Google AI).

 

thank you so much for your prompt to reply and assist. I think this is a very good information that I was looking for.