ET-Blu mix rolling code transmitters make use of an enhanced rolling code format currently offering the user the ultimate in transmitter transmission security. This unique coding format is factory programmed.
A unique feature is that the user has the option of selecting either the new enhanced rolling code or the previous existing rolling code format, which makes the product backward compatible to ET rolling code receivers. The only way to add a new transmitter to your security system is to program it into you receiver memory.