Profile: Control Signal Corporation specializes in offering encoder and decoder. We provide ID-12 encoder and ID-1201 decoder. Our ID-12 encoder identifies each radio caller and stops the horseplay. It is compatible with all radios and contains micro-miniature size. It includes stuck mike timer circuitry and operates in the presence of any squelch control. It contains emergency alert with a switch closure, the ID-12 will send an emergency ID 8 times and then reset.