What equipment does a service judge have?

A service judge typically uses a few essential pieces of equipment during a match, including a chair or stand for an elevated view of the court, a signaling device (such as a flag or whistle) to indicate faults or service violations, and a notebook or electronic device for recording points and incidents. They may also have a headset for communication with other officials, especially in larger tournaments. Additionally, a service judge often carries a stopwatch to monitor the time between serves.