Is continuity tester profitable to sell on Amazon United States?

The niche generates $123K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.4%. Flapen's verdict: Skip it (47/100).

How competitive is the continuity tester niche?

15 brands and 97 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 68% of demand.

What do buyers complain about in continuity tester?

Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Durability. The return rate is 2.8%.

When does demand for continuity tester peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the continuity tester niche?

Listings span $5.58–$84.23; the average listing price is $21.94 (sweet spot $15–$100). The average incumbent carries 5,732 reviews — the moat a new listing must climb.

continuity tester

Skip it

Soft demand (-3.4% this quarter) — this niche doesn't clear our bar today.

Avg price

Great$21.94

avg listing price — sweet spot $15–$100

Price range

Great$5.58–$84.23

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.4%

search→purchase rate — share of searches ending in a sale

Brand share

Good68%

top-5 brand share — brands hold most of the demand

Returns

Good2.8%

return rate — above 5% kills the launch gate

Competition

Okay60%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$123K

$123K/yr · 87K searches

Review moat

Bad5,732.11

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-3.4%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, continuity tester is a $123K/yr Amazon United States market (87K searches/yr). The top 5 brands hold 68% of demand. Verdict: Skip it — 47/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

continuity tester market data

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: $110K–$132K; units × avg price
Conversion rate: 6.4%
Avg BSR: #107
Page quality: 0%
Prime: 95%
Sponsored: 79%
Out of stock: 1.0%
Avg brand age: 54 months
Avg seller age: 153 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 falling

Sellers

Top-5 brand share

68%

Top 20: 100%

Top-5 click share

60%

Top 20: 100%

Open market

26%

Gardner Bender33%
AstroAI14%
Dorman7%
Extech7%
WINAMOO7%
LJPXHHU6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top continuity tester search terms

continuity tester71K/yr -5.7%4.9% conv.
continuity tester with light and buzzer9K/yr +4.4%5.6% conv.
continuity tester with light4K/yr -17.3%5.8% conv.
continuity3K/yr +85.6%0.3% conv.

All search terms

Top continuity 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester 2 Range 36 inch lead Yellow

Gardner Bender$7.334.4★1,430 rev

AstroAI Digital Multimeter Tester 2000 Counts with DC AC Voltmeter and Ohm Volt Amp Meter; Measures Voltage Current Resistance Continuity and Diode Blue

AstroAI$14.244.5★55,287 rev

Dorman 86611 Continuity Tester - Electrical Universal Fit

Dorman$12.164.4★12 rev

Extech CT20 Remote and Local Continuity Tester with Remote Probe Audible Tone Long-Distance Cable Testing LED Indicators Hands-Free Operation for Electrical HVAC Telecom and Low-Voltage Work

Extech$45.184.5★2,009 rev

Gardner Bender GCT-3304 Continuity Tester

Gardner Bender$8.434.4★309 rev

Newest

by launch date

9V Buzzer Tester Wire Continuity Detector with Sound Prompt for Cable Connection/PCB Electrical Circuit Detector Battery Powered Continuity Meter(Continuity Tester with Pen & Clip Wire)

Drhomeam$18.5412 rev

10mo ago

Professional Wire Continuity Tester Electronic Circuit Testing Tool with Sound and Visual Indicator for PCB Board Cable Switch Testing Measurement 9V Battery Operated(C)

Jumplushion$15.4910 rev

1y ago

ATOBLIN Test Light Automotive 3-120V DC LED Digital Circuit Tester with Voltage Display Auto Bidirectional Voltage Tester Electric Test Probe Pen for Car Battery Polarity Continuity Fuses

ATOBLIN$11.94424 rev

1y ago

WINAMOO Automotive Test Light with 3-48V LED Digital Voltage Display Auto Circuit Tester with Voltmeter & Dual Color Polarity Indicate Electric Test Pen w/Stainless Probe for Car/Truck/SUV Checker

WINAMOO$8.762,761 rev

2y ago

VDIAGTOOL V210 Wire Tracer Electrical Circuit Breaker Finder Automotive Open & Short Circuit Finder Circuit Tester Fault Probe Wire Tracker Electrical DC 6-42V for Cars Motorcycle

VDIAGTOOL$25.731,024 rev

2y ago

What buyers say about continuity tester

What buyers praise and complain about, mined from review topics.

What buyers love

Value For Money25%

“Excellent value”

Advertised Vs Actual Product17%

“As advertised”

Quality-Overall15%

“Good Quality Tool”

Ease Of Use12%

“Easy to operate”

Efficiency9%

“Works perfectly”

Measurement/Reading Accuracy5%

“The accuracy is impressive for the price”

Functionality-Overall2%

“performs all of the functions”

Durability2%

“still doesn't break the bank”

Battery Life2%

“Battery it came with is working fine”

Size-Overall1%

“Length is perfect”

What buyers complain about

Functionality-Overall16%

“Did not work”

Quality-Overall11%

“Complete garbage”

Durability10%

“Stopped working after several uses”

Measurement/Reading Accuracy9%

“also because after just a couple of uses it fails to deliver consistent readings”

Battery Life5%

“Couldn't open battery without destroying it”

Instructions/User Manual/Troubleshooting4%

“they can't afford to provide readable instructions”

Value For Money4%

“Priced Descent”

Advertised Vs Actual Product3%

“Plus its product title is misleading”

Product Condition3%

“Appears to have been used”

Rusts/Corrodes3%

“Showed up with corrosion on battery connection”

Top return reasons

Functionality-Overall34%

Measurement/Reading Accuracy12%

Advertised Vs Actual Product8%

Value For Money7%

Defective Material/Parts6%

Compatibility-Overall5%

Size-Overall4%

Quality-Overall4%

Battery Inclusion3%

Instructions/User Manual/Troubleshooting3%

Common questions

Is continuity tester profitable to sell on Amazon United States?: The niche generates $123K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.4%. Flapen's verdict: Skip it (47/100).
How competitive is the continuity tester niche?: 15 brands and 97 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in continuity tester?: Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Durability. The return rate is 2.8%.
When does demand for continuity tester peak?: Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the continuity tester niche?: Listings span $5.58–$84.23; the average listing price is $21.94 (sweet spot $15–$100). The average incumbent carries 5,732 reviews — the moat a new listing must climb.