The K-9 433-01B Replacement Remote Transmitter is a compatible remote control designed for use with the K-9 Mundial-3 car alarm system. This black 3-button remote lets you easily arm, disarm, and activate auxiliary functions or panic mode on your alarm system. Built to work on the same 433 MHz frequency as the original transmitters included with your system, this remote is a cost-effective solution for replacing lost or damaged remotes or adding an extra transmitter for family use. It’s compact, lightweight, and simple to program — perfect for maintaining full control of your vehicle security system.