Interlogix TX-E121 Command Button, 319.5MHz

The Interlogix TX-E121 Command Button operates at 319.5 MHz and works with Alarm.com interactive services and UltraSync systems. This wireless button can trigger up to three different automation scenes with single, double, or hold presses.

Its compact, low-profile design allows for easy mounting on multiple surfaces. The device features a square red LED that indicates transmissions and comes with a pre-installed CR-2032 coin-cell battery offering up to five years of operation. Low battery reporting notifies users when the battery needs replacement.