Get notified about equipment issues even when you aren't around your machines. These lights connect to your computer via Ethernet, allowing you to set up email alerts when there is a problem with a machine, server, or conveyor. The buzzer can emit both continuous and pulse tones—pulse tones alternate on/off to draw greater attention than continuous tones. Lights have an LED bulb for years of maintenance-free operation. With text to speech, you can type out a message on your computer that will be read aloud by the stack light. Text to speech is useful for communicating details that would be difficult using the buzzer and lights alone.