What electrical tool often prevents electrical shock in wet areas?

The Ground Fault Interrupter (GFI) is designed specifically to prevent electrical shock in wet areas, such as bathrooms, kitchens, and outdoor locations where moisture is present. A GFI works by monitoring the current flowing through a circuit. If it detects an imbalance between the outgoing and incoming current—indicative of a leakage current that may be passing through a person's body to ground—it quickly cuts off the power to that circuit.

This device is essential for enhancing safety in environments where the risk of electrical shock is heightened due to wet conditions. Common places where GFIs are required include areas with sinks, bathtubs, and outdoor outlets. While other options like voltage meters, fuses, and disconnects serve important functions in electrical safety, they do not specifically target the prevention of electrical shock in wet environments like the GFI does.