Fluke ST120+ front view with bright LEDs for fast outlet wiring checks.
Fluke ST120+ LED indicators simplify identifying miswired outlets on site.
Fluke ST120+ GFCI button verifies GFCI outlets in the field.
Fluke ST120+ beeper enables breaker identification when testing circuits.
Fluke ST120+ rugged compact design suits busy job sites.
Fluke ST120+ in-use outlet test demonstrates quick status verification.

Fluke

Fluke ST120+ GFCI Socket Tester with Audible Beeper – Quick Outlet Verification

High-performance tools and home improvement made for confident daily results

$31.55

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Why customers choose TaskHolt Tools

Meet the Fluke ST120+ GFCI Socket Tester with Audible Beeper—designed for electricians, inspectors, home inspectors, and technicians who need clear, quick verification of outlet wiring and GFCI performance on the job. Its compact, rugged build travels easily between sites, and the integrated features provide practical feedback without guesswork.

Engineered for field use, this tester combines a GFCI test button, bright LEDs, and a switchable beeper in a compact, rugged package that travels well from one site to the next. The result is a tool that supports fast, informed checks while you stay on task.

Key benefits at a glance

  • Integrated GFCI test button to verify proper operation of GFCI-equipped outlets
  • Bright LEDs provide fast, at-a-glance status to identify miswired outlets
  • Compact, rugged design built to withstand busy job sites
  • Audible beeper increases safety and helps locate the correct circuit by signaling voltage presence and beeper status

Real-world uses

  • Electricians quickly confirm outlet wiring during new installs, renovations, or service calls
  • Inspectors verify GFCI outlets in kitchens, bathrooms, garages, and outdoor locations
  • Beep cues help you locate breakers without extra trips to the panel, saving time during troubleshooting
  • The beeper can be toggled on/off to suit noisy environments or quiet checks

How to use

  1. Plug the ST120+ into the outlet you want to test
  2. Observe LED indicators for correct or miswired wiring
  3. Use the GFCI button to confirm proper operation of GFCI outlets
  4. Switch on the audible beeper to hear voltage presence and assist breaker identification
  5. Flip the corresponding breaker and listen for the beeper change to confirm the right circuit

With its blend of practical features and reliable construction, the ST120+ is a practical companion for everyday electrical testing. It helps you work efficiently while keeping the focus on safety and accuracy, without making guarantees about outcomes. Consider it a versatile tool for routine checks and on-site verification.

FAQ

Q: What is the Fluke ST120+ best used for?

A: Use the ST120+ to verify outlet wiring, test GFCI-equipped outlets, and quickly locate the corresponding breaker.

Q: How does the beeper help on site?

A: Turn on the beeper and flip breakers; the tone confirms the right circuit, speeding identification.

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