outlet tester
Worth a lookShows searches that convert (12.0% search→purchase), but strong incumbent ratings (4.7★) keeps it on the watch list.
Conversion
Incredible12.0%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$22.96avg listing price — sweet spot $15–$100
Market size
Great$1.7M$1.7M/yr · 611K searches
Price range
Great$6.00–$60.08cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.1%return rate — above 5% kills the launch gate
Growth
Okay+6.5%90-day search growth — must beat 0% to launch
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Review moat
Okay3,984.68avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, outlet tester is a $1.7M/yr Amazon United States market (611K searches/yr). The top 5 brands hold 89% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
outlet tester market data
- Units sold / yr
- 60K–80K
- avg 4,000–5,000/product
- Revenue / yr
- $1.4M–$1.8M
- units × avg price
- Conversion rate
- 12.0%
- Avg BSR
- #25
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 79%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 143 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
10 rising
Sellers
86
Top-5 brand share
89%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
8%
- KLEIN TOOLS61%
- KAIWEETS14%
- SPERRY5%
- Gardner Bender4%
- Southwire4%
- focemta4%
- Open — no brand owns it (4 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +6.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top outlet tester search terms
- outlet tester246K/yr
- gfci tester71K/yr
- outlet tester plug in40K/yr
- receptacle tester32K/yr
- electrical outlet tester39K/yr
- plug tester28K/yr
- gfci outlet tester22K/yr
- electric outlet tester18K/yr
- klein outlet tester17K/yr
- outlet checker11K/yr
Top outlet tester products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Klein Tools RT250 GFCI Outlet Tester with LCD Display Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles
KLEIN TOOLS$23.444.8★11,354 rev
Klein Tools RT110 Outlet Tester AC Electrical Receptacle Tester for North American Outlets
KLEIN TOOLS$9.944.8★3,542 rev
Klein Tools RT210 Outlet Tester Receptacle Tester for GFCI / Standard North American AC Electrical Outlets Detects Common Wiring Problems
KLEIN TOOLS$13.854.8★8,926 rev
KAIWEETS GFCI Outlet Tester with LCD Display 3-Prong Receptacle Wiring Detector Voltage Socket Checker Auto Hold Electrical Diagnostic Tool for 120V AC Home Outlets
KAIWEETS$17.624.6★370 rev
Klein Tools 80025 Outlet Tester Kit with GFCI Tester and Non-Contact Voltage Test Pen 2-Piece
KLEIN TOOLS$24.464.8★1,176 rev
Newest
by launch dateKAIWEETS GFCI Outlet Tester with LCD Display 3-Prong Receptacle Wiring Detector Voltage Socket Checker Auto Hold Electrical Diagnostic Tool for 120V AC Home Outlets
KAIWEETS$17.62370 rev
Focemta Circuit Breaker Finder Kit with GFCI Outlet Tester for 90-135V AC Circuits includes Light Socket Adapter 3-2 Prong Grounding Adapter & Clip adapter Portable Electrical Tool with Carrying Case
focemta$53.84573 rev
KAIWEETS Circuit Breaker Finder with LCD Display GFCI Outlet Tester Electrical Circuit Tracer Tool with NCV Test & Flashlight Includes Carrying Case and Adapters- KT301P
KAIWEETS$60.081,017 rev
KAIWEETS Electrical Test Kit Non-Contact Voltage Tester and GFCI Outlet Tester with LCD Display Wiring Fault Checker Outlet Tester Kit for Electrician DIY 2-Piece
KAIWEETS$25.91292 rev
Focemta Circuit Breaker Finder & GFCI Outlet Tester with Digital LCD Display 90-135V Electrical Circuit Tracer Tool for Electricians/DIY Lightweight (Includes Batteries & Carrying Case)
focemta$41.43673 rev
Trending
90-day click momentumKAIWEETS Electrical Test Kit Non-Contact Voltage Tester and GFCI Outlet Tester with LCD Display Wiring Fault Checker Outlet Tester Kit for Electrician DIY 2-Piece
KAIWEETS$25.914.6★
Klein Tools RT110 Outlet Tester AC Electrical Receptacle Tester for North American Outlets
KLEIN TOOLS$9.944.8★
Southwire GFCI Receptacle Tester - Push-Button Outlet Tester for Fast & Accurate Wiring Checks - Compact & Durable Housing - 7 Test Functions
Southwire$7.934.7★
KAIWEETS GFCI Outlet Tester with LCD Display 3-Prong Receptacle Wiring Detector Voltage Socket Checker Auto Hold Electrical Diagnostic Tool for 120V AC Home Outlets
KAIWEETS$17.624.6★
KAIWEETS Circuit Breaker Finder with LCD Display GFCI Outlet Tester Electrical Circuit Tracer Tool with NCV Test & Flashlight Includes Carrying Case and Adapters- KT301P
KAIWEETS$60.084.6★
What buyers say about outlet tester
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to read”
“As Advertised”
“Quality tool that does what its intended for”
“Excellent value”
“Works wonderfully”
“It worked well”
“Directions are clear”
“Clear, accurate, and incredibly helpful”
“Good outlet tester”
“Reliable and durable”
What buyers complain about
“Doesnt work very well”
“Instructions could be better”
“Complete garbage”
“Fails after a year”
“Does not give the exact breaker”
“Otherwise how would you know when the batteries are dead”
“It falsely gives indications”
“Doesnt work well on shared neutral circuits”
“it turned out all had a faulty. old”
“-black color, can be harder to locate if in a bag or some darker crevices”
Top return reasons
Common questions
- Is outlet tester profitable to sell on Amazon United States?
- The niche generates $1.7M/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.5%. Flapen's verdict: Worth a look (55/100).
- How competitive is the outlet tester niche?
- 10 brands and 86 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 89% of demand.
- What do buyers complain about in outlet tester?
- Top complaints mined from reviews: Functionality-Overall, Instructions/User Manual/Troubleshooting, Quality-Overall. The return rate is 2.1%.
- When does demand for outlet tester peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the outlet tester niche?
- Listings span $6.00–$60.08; the average listing price is $22.96 (sweet spot $15–$100). The average incumbent carries 3,985 reviews — the moat a new listing must climb.