Z4 Ultra is an Android app developed by Classic that allows users to easily control intruder alarm systems using predefined SMS commands. With this app, there is no need to manually type out the content of SMS messages, as the app will automatically send the predefined content to the designated number saved in the settings.

This app is specifically designed for use with GSM switches like G1 Pro and is compatible with intruder alarm systems such as Z4 Ultra. It offers a convenient and efficient way to control your alarm system without the hassle of manual input. However, it is important to note that this app should only be used if it is mentioned in your alarm system's user manual.

Tags: Z4 Ultra, G1 Pro, SMS, Autodialer, Classic