All-in-One Electrical Diagnosis: The KT303P Circuit Breaker Finder Tools quickly locate breakers, check outlet wiring, test GFCI protection, and non-contact voltage testing in one compact tool. The innovative nesting design allows the transmitter and receiver to store together securely, reducing the risk of misplaced components while improving portability for residential and commercial electrical troubleshooting. LCD Display with Clear Feedback: The receiver delivers clear, real-time feedback for fast and accurate breaker identification. The large dual-color backlit display provides easy-to-read signal strength information and scan modes for intuitive operation. Combined with bright LED indicators, audible alerts, and a built-in flashlight for dark breaker panels or tight spaces. Advanced GFCI Outlet Tester: The transmitter doubles as a GFCI Outlet Tester that detects 7 common wiring faults, including open ground, open neutral, and reverse polarity. The built-in GFCI test function verifies that outlet protection devices are operating properly, helping ensure electrical safety throughout the home, workshop, or job site. Enhanced Safety with NCV Detection: The receiver features Non-Contact Voltage (NCV) detection, allowing users to safely identify live voltage without direct contact. Quickly check wires, outlets, and electrical devices before handling them, adding an extra layer of protection for homeowners, DIYers, maintenance personnel, and electricians. Complete Accessory Kit with Carrying Case: This Circuit Breaker Finder Kit includes a 3-prong to 2-prong adapter, light socket adapter, and alligator clip adapter, providing expanded application versatility. The kit also comes with 2 AAA batteries, a user manual, and a bonus set of circuit breaker labels for easy panel organization. The durable carrying case keeps all components protected, organized, and ready for use whenever needed.