In order to program an RC7x series to a sounder you need a compatible receiver such as HR44/54 C41/51/61
What model of receiver do you have. look for the model number inside the access card door..
In order to program an RC7x series to a sounder you need a compatible receiver such as HR44/54 C41/51/61
What model of receiver do you have. look for the model number inside the access card door..