Extech CB20 Circuit Breaker Finder and Receptacle Tester

The Extech CB20 quickly locates circuit breakers and tests for proper elecectrical wiring installation.


  • Quickly locates circuit breakers and fuses
  • Tests GFCI circuits
  • Tests reversed/open connections
Your Price $98.99
Usually ships in 1-2 weeks
Free Lifetime Tech SupportFree Lifetime Tech Support
ImagePart#Product DescriptionPriceStockOrder
Extech CB20 Circuit Breaker Finder and Receptacle TesterCB20 Circuit breaker finder/receptacle tester
Usually ships in 1-2 weeks

This convenient circuit breaker finder allows users to quickly locate branch circuit breakers without interrupting power, using a microprocesser-based automatic sensitivity adjustment. The receptacle tester confirms proper wiring of electrical installation, and tests GFCI circuits.

  •  Receptacle tester dimensions/weight: 4.6x2.4x1.4” (118x60x35mm)/3.2oz (91g)
  • Circuit breaker finder dimensions/weight: 7.7x2.2x1.4" (196x55x36mm)/4.8oz (136g)
  • (1) Receiver
  • (1) Transmitter
  • (1) 9V battery
Questions & Answers
No Questions
Please, mind that only logged in users can submit questions