Wireless remote control for car alarm security system, customized frequency, function up to customer. Product Appearance :Item : wirelss ... remote control ,copying RF fixed code remote by a easy way. To replace the original old and break remote .Available fixed ... ,such asASK ,OOK modulate mode remote ,gate opener,car cental system and so on .Encoder model : HCS301,HCS201,HCS200,HCS500,HCS300, ...