The Saia-Burgess F4T7 is an LED indicator module that features an LED and a piezo buzzer as its major components. The LED is a bright red light that emits up to 8 lumens. The module also comes equipped with a tactile switch, allowing users to activate the LED and buzzer. Additionally, the module has a wide range of operating voltages, further allowing for a variety of uses. The F4T7 is designed for simple, energy efficient, and cost effective indication. It is often used in applications such as industrial automation, security, access control, and alarms.