Is voltage tester pen profitable to sell on Amazon United Kingdom?

The niche generates £1.3M/yr across 31 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -26.6%. Flapen's verdict: Worth a look (57/100).

How competitive is the voltage tester pen niche?

14 brands and 78 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 83% of demand.

What do buyers complain about in voltage tester pen?

Top complaints mined from reviews: Quality-Overall, Functionality-Overall, Value For Money. The return rate is 1.3%.

When does demand for voltage tester pen peak?

Demand peaks in Nov; the busiest month runs 1.7× the quietest.

What does it cost to enter the voltage tester pen niche?

Listings span £4.84–£217.42; the average listing price is £49.36 (sweet spot $15–$100). The average incumbent carries 3,445 reviews — the moat a new listing must climb.

voltage tester pen

Worth a look

Shows a sweet-spot price point ($49.36 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Great£49.36

avg listing price — sweet spot $15–$100

Returns

Great1.3%

return rate — above 5% kills the launch gate

Market size

Great£1.3M

£1.3M/yr · 380K searches

Conversion

Great7.1%

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

Competition

Good51%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Okay£4.84–£217.42

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

Brand share

Okay83%

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

Review moat

Okay3,444.94

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-26.6%

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

According to Flapen's Amazon United Kingdom niche tracking, voltage tester pen is a £1.3M/yr Amazon United Kingdom market (380K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Nov. Verdict: Worth a look — 57/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

voltage tester pen market data

Units sold / yr: 20K–25K; avg 750–1,000/product
Revenue / yr: £987K–£1.2M; units × avg price
Conversion rate: 7.1%
Avg BSR: #75
Page quality: 0%
Prime: 90%
Sponsored: 65%
Out of stock: 0.0%
Avg brand age: 41 months
Avg seller age: 164 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

51%

Top 20: 87%

Open market

13%

Fluke49%
KAIWEETS15%
Aicevoos7%
VENLAB7%
yowexa5%
C.K4%
Open — no brand owns it (8 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -26.6% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 1.7×

Open Trend

Top voltage tester pen search terms

fluke multimeter84K/yr -29.5%1.3% conv.
fluke46K/yr -24.3%0.5% conv.
voltage tester pen42K/yr -19.8%8.6% conv.
fluke voltage tester31K/yr -29.3%4.3% conv.
electric tester pen22K/yr -27.5%8.0% conv.
non contact voltage tester22K/yr -33.0%6.4% conv.
volt stick17K/yr -25.6%8.1% conv.
voltage pen13K/yr +2.1%7.5% conv.
volt pen15K/yr -24.3%8.9% conv.
fluke voltage tester pen14K/yr -34.8%10.1% conv.

All search terms

Top voltage tester pen 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Fluke 1AC II VoltAlert - Non-Contact Voltage Detector Pen CAT IV 1000V

Fluke£21.964.5★15,146 rev

KAIWEETS HT100 Voltage Tester Dual-Range 12V-1000V/48V 1000V Non-Contact Electrical Tester Voltage Sensitivity Electric Compact Pen with NCV LED Flashlight Buzzer Alarm Wire Breakpoint Finder

KAIWEETS£8.474.5★16,181 rev

Fluke 15B+ Digital Multimeter

Fluke£97.744.7★68 rev

VENLAB Voltage Tester VD200 12V-1000V/48V-1000V Dual Range Non-Contact Electric Tester Sensitivity Electrical Voltage Pen Indicator light with NCV Flashlight Buzzer Alarm Wire Breakpoint Finder

VENLAB£7.504.5★4,938 rev

YOWEXA Voltage Tester Pen Dual Range AC 12/48-1000V Non-Contact Electrical Tester with Sound Light Alarm LED Flashlight Low Battery Indicator & Auto Off

yowexa£8.204.5★257 rev

Newest

by launch date

YOWEXA Voltage Tester Pen Dual Range AC 12/48-1000V Non-Contact Electrical Tester with Sound Light Alarm LED Flashlight Low Battery Indicator & Auto Off

yowexa£8.20257 rev

7mo ago

Fluke 15B+ Digital Multimeter

Fluke£97.7468 rev

10mo ago

Fluke 17B+ Digital Multimeter

Fluke£125.9149 rev

10mo ago

Non Contact Voltage Tester Pen 90-1000V AC Live Wire Detector with LED Flashlight & Audible Alarm Electric Voltage Test Pen for Sockets Cables & Circuits

21 Products£14.24107 rev

2y ago

Aicevoos A1 Voltage Tester/Non-Contact Voltage Tester with Range AC 12V-1000V/48V-1000V Live/Null Wire Tester Electrical Tester with Flashlight Buzzer Alarm Wire Breakpoint Finder (Orange)

Aicevoos£6.651,673 rev

3y ago

What buyers say about voltage tester pen

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

What buyers love

Ease Of Use24%

“Easy to use”

Value For Money20%

“Well worth the money”

Advertised Vs Actual Product13%

“As advertised”

Quality-Overall13%

“Seems well made”

Efficiency11%

“Works as expected”

Functionality-Overall4%

“Good item thats seems to work”

Safety Standards2%

“Been wanting one of these for a while and its brilliant, saves a lot of time, and makes things safer”

Portability1%

“easy to carry”

Instructions/User Manual/Troubleshooting1%

“Clear instructions to do the job it supposed to”

Brightness/Shine/Glow1%

“the lights are bright”

What buyers complain about

Quality-Overall20%

“Very poor quality”

Functionality-Overall18%

“Stopped working”

Value For Money8%

“Very low budget item”

Durability5%

“Breaks easily”

Battery Life5%

“Battery life also wasnt great”

Touch/Button Controls5%

“Dismantled the product to find the button wasnt seated correctly which I corrected”

Instructions/User Manual/Troubleshooting4%

“no instructions with it”

Defective Material/Parts4%

“But unfortunately I must have been sent a faulty product”

Material Quality4%

“The plastics feel cheap and almost toy-like, defintely not robust”

Size-Overall3%

“Not fit for purpose”

Top return reasons

Functionality-Overall44%

Defective Material/Parts16%

Compatibility-Overall5%

Quality-Overall4%

Touch/Button Controls4%

Value For Money3%

Advertised Vs Actual Product3%

Product Condition3%

Battery Life3%

Instructions/User Manual/Troubleshooting2%

Common questions

Is voltage tester pen profitable to sell on Amazon United Kingdom?: The niche generates £1.3M/yr across 31 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -26.6%. Flapen's verdict: Worth a look (57/100).
How competitive is the voltage tester pen niche?: 14 brands and 78 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 83% of demand.
What do buyers complain about in voltage tester pen?: Top complaints mined from reviews: Quality-Overall, Functionality-Overall, Value For Money. The return rate is 1.3%.
When does demand for voltage tester pen peak?: Demand peaks in Nov; the busiest month runs 1.7× the quietest.
What does it cost to enter the voltage tester pen niche?: Listings span £4.84–£217.42; the average listing price is £49.36 (sweet spot $15–$100). The average incumbent carries 3,445 reviews — the moat a new listing must climb.