Klein Tools Digital Circuit Breaker Finder with GFCI Outlet Tester and Accessory Kit M2O41519KIT - The Home Depot
IDEAL Circuit Breaker Finder Adapter Kit in the Test Meter Accessories department at Lowes.com
Amazon.com: Klein Tools 80016 Circuit Breaker Finder Tool Kit & RT310 Receptacle Tester, AFCI and GFCI Outlet and Device Tester for North American AC Electrical Outlet Receptacles : Everything Else
UNI-T AC Circuit Breaker Finder with Integrated GFCI Outlet Tester AC 90-120V US Plug Socket Tester W/Analogue Receiver&LED - AliExpress