---
title: "Continuity Tester — $123K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/continuity-tester"
last_updated: "2026-08-08T21:45:52.753Z"
locale: en
meta:
  description: "Niche score 47/100 · $123K/yr market · 87K searches/yr · $21.94 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 47/100 · $123K/yr market · 87K searches/yr · $21.94 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Continuity Tester — $123K/yr Amazon US Niche (2026) - Flapen"
---

# **continuity tester**

**Skip it**

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

Market size 28Growth 23Conversion 70Competition 42Returns 55Price range 85Avg price 92Brand share 62Review moat 24Quality gap 42

**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**

**Good****6.4%**

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

**Brand share**

**Good****68%**

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

**Returns**

**Good****2.8%**

return rate — above 5% kills the launch gate

**Competition**

**Okay****60%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Market size**

**Okay****$123K**

$123K/yr · 87K searches

**Review moat**

**Bad****5,732.11**

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 ~~](https://flapen.com/research/methodology)

## **continuity tester market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**5K–6K**</dd><dd>avg 100–250/product</dd>

<dt>**Revenue / yr**</dt><dd>**$110K–$132K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**6.4%**</dd>

<dt>**Avg BSR**</dt><dd>**#107**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**95%**</dd>

<dt>**Sponsored**</dt><dd>**79%**</dd>

<dt>**Out of stock**</dt><dd>**1.0%**</dd>

<dt>**Avg brand age**</dt><dd>**54 months**</dd>

<dt>**Avg seller age**</dt><dd>**153 days**</dd>

</dl>

## **Competition & brand share**

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

**Brands**

**15 **▼falling

**Sellers**

**97**

**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.

3K2KBlack Friday '24Holiday '24 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/continuity-tester/trend)

## **Top continuity tester search terms**

- **continuity tester**71K/yr-5.7%4.9% conv. - **continuity tester with light and buzzer**9K/yr+4.4%5.6% conv. - **continuity tester with light**4K/yr-17.3%5.8% conv. - **continuity**3K/yr+85.6%0.3% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/continuity-tester/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.

0%10%$12K20%$25K30%$37K40%$49K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

[1![Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester 2 Range 36 inch lead Yellow](https://m.media-amazon.com/images/I/212e8V5Ns0L.jpg)**Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester 2 Range 36 inch lead Yellow**Gardner Bender**$7.33**4.4★1,430 rev](https://www.amazon.com/dp/B000GL7GJG) [2![AstroAI Digital Multimeter Tester 2000 Counts with DC AC Voltmeter and Ohm Volt Amp Meter; Measures Voltage Current Resistance Continuity and Diode Blue](https://m.media-amazon.com/images/I/41Ul9is2kxL.jpg)**AstroAI Digital Multimeter Tester 2000 Counts with DC AC Voltmeter and Ohm Volt Amp Meter; Measures Voltage Current Resistance Continuity and Diode Blue**AstroAI**$14.24**4.5★55,287 rev](https://www.amazon.com/dp/B01ISAMUA6) [3![Dorman 86611 Continuity Tester - Electrical Universal Fit](https://m.media-amazon.com/images/I/31vxKGEA+QL.jpg)**Dorman 86611 Continuity Tester - Electrical Universal Fit**Dorman**$12.16**4.4★12 rev](https://www.amazon.com/dp/B002H9H6TK) [4![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](https://m.media-amazon.com/images/I/41WR1N+XsUL.jpg)**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**$45.18**4.5★2,009 rev](https://www.amazon.com/dp/B000LYTTRK) [5![Gardner Bender GCT-3304 Continuity Tester](https://m.media-amazon.com/images/I/21bkNlyGCIL.jpg)**Gardner Bender GCT-3304 Continuity Tester**Gardner Bender**$8.43**4.4★309 rev](https://www.amazon.com/dp/B0017QLCDK)

**~~View all top sellers →~~**

### **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)](https://m.media-amazon.com/images/I/41DTPYY0vjL.jpg)**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**$18.54**12 rev10mo ago](https://www.amazon.com/dp/B0FRNDVYNH) [![Professional Wire Continuity Tester Electronic Circuit Testing Tool with Sound and Visual Indicator for PCB Board Cable Switch Testing Measurement 9V Battery Operated(C)](https://m.media-amazon.com/images/I/31ErcXfXOWL.jpg)**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**$15.49**10 rev1y ago](https://www.amazon.com/dp/B0FDQN6VQY) [![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](https://m.media-amazon.com/images/I/41lPh7iecBL.jpg)**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**$11.94**424 rev1y ago](https://www.amazon.com/dp/B0DF1HVGF9) [![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](https://m.media-amazon.com/images/I/41-m3Eoro9L.jpg)**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**$8.76**2,761 rev2y ago](https://www.amazon.com/dp/B0D8PXNPYH) [![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](https://m.media-amazon.com/images/I/31pVHVprFHL.jpg)**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**$25.73**1,024 rev2y ago](https://www.amazon.com/dp/B0D17ZL83R)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![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)](https://m.media-amazon.com/images/I/41DTPYY0vjL.jpg)**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**$18.54**4.5★**▲ 130%**](https://www.amazon.com/dp/B0FRNDVYNH) [![Merisky Conductivity Test Pen Tester for Earthing Continuity Tester for Grounding Mats Sheets Pads Socks Pillow Cases. Use to Test Effectiveness of Earth Connected Products.](https://m.media-amazon.com/images/I/31Qmx4mCC4L.jpg)**Merisky Conductivity Test Pen Tester for Earthing Continuity Tester for Grounding Mats Sheets Pads Socks Pillow Cases. Use to Test Effectiveness of Earth Connected Products.**Merisky**$9.62**4.2★**▲ 87%**](https://www.amazon.com/dp/B0D12NDZ4S) [![Digital Multimeter Voltmeter Battery Voltage Multi Tester Continuity Ohm Volt Amp DC AC Current Resistance Diodes 2000 Counts Electrical Test Meter with Leads Backlight LCD Display](https://m.media-amazon.com/images/I/41zVT9H1mvL.jpg)**Digital Multimeter Voltmeter Battery Voltage Multi Tester Continuity Ohm Volt Amp DC AC Current Resistance Diodes 2000 Counts Electrical Test Meter with Leads Backlight LCD Display**LJPXHHU**$10.26**4.4★**▲ 68%**](https://www.amazon.com/dp/B0CXM242J1) [![Dorman 86611 Continuity Tester - Electrical Universal Fit](https://m.media-amazon.com/images/I/31vxKGEA+QL.jpg)**Dorman 86611 Continuity Tester - Electrical Universal Fit**Dorman**$12.16**4.4★**▲ 62%**](https://www.amazon.com/dp/B002H9H6TK) [![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](https://m.media-amazon.com/images/I/31pVHVprFHL.jpg)**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**$25.73**4.2★**▲ 55%**](https://www.amazon.com/dp/B0D17ZL83R)

**~~View all trending →~~**

## **What buyers say about continuity tester**

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

### **What buyers love **

**Value For Money**25%

*“Excellent value”*

**Advertised Vs Actual Product**17%

*“As advertised”*

**Quality-Overall**15%

*“Good Quality Tool”*

**Ease Of Use**12%

*“Easy to operate”*

**Efficiency**9%

*“Works perfectly”*

**Measurement/Reading Accuracy**5%

*“The accuracy is impressive for the price”*

**Functionality-Overall**2%

*“performs all of the functions”*

**Durability**2%

*“still doesn't break the bank”*

**Battery Life**2%

*“Battery it came with is working fine”*

**Size-Overall**1%

*“Length is perfect”*

### **What buyers complain about **

**Functionality-Overall**16%

*“Did not work”*

**Quality-Overall**11%

*“Complete garbage”*

**Durability**10%

*“Stopped working after several uses”*

**Measurement/Reading Accuracy**9%

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

**Battery Life**5%

*“Couldn't open battery without destroying it”*

**Instructions/User Manual/Troubleshooting**4%

*“they can't afford to provide readable instructions”*

**Value For Money**4%

*“Priced Descent”*

**Advertised Vs Actual Product**3%

*“Plus its product title is misleading”*

**Product Condition**3%

*“Appears to have been used”*

**Rusts/Corrodes**3%

*“Showed up with corrosion on battery connection”*

### **Top return reasons **

**Functionality-Overall**34%

**Measurement/Reading Accuracy**12%

**Advertised Vs Actual Product**8%

**Value For Money**7%

**Defective Material/Parts**6%

**Compatibility-Overall**5%

**Size-Overall**4%

**Quality-Overall**4%

**Battery Inclusion**3%

**Instructions/User Manual/Troubleshooting**3%

## **Common questions**

<dl>

<dt>**Is continuity tester profitable to sell on Amazon United States?**</dt><dd>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).</dd>

<dt>**How competitive is the continuity tester niche?**</dt><dd>15 brands and 97 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 68% of demand.</dd>

<dt>**What do buyers complain about in continuity tester?**</dt><dd>Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Durability. The return rate is 2.8%.</dd>

<dt>**When does demand for continuity tester peak?**</dt><dd>Demand is steady year-round — the busiest month runs 1.2× the quietest.</dd>

<dt>**What does it cost to enter the continuity tester niche?**</dt><dd>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.</dd>

</dl>

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