Shurite 8404Z is a hand-held, solid-state circuit breaker locator designed to trace and label the position of every circuit breaker leg in a panelboard. It is designed with a patented algorithm that senses in 3-D and minimizes the time it takes to accurately identify the target leg. The 8404Z uses a self-grounding antenna design, making the probe safe and easy-to-use. There is also an audible notification when the target leg is verified and located. The ergonomic design allows for easy and intuitive operation, while the grip provides a comfortable and secure handle. The 8404Z has a slim profile and is compatible with all industry-standard North American panels.