voltage tester
Worth a lookShows low returns (1.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Great1.3%return rate — above 5% kills the launch gate
Conversion
Great7.6%search→purchase rate — share of searches ending in a sale
Brand share
Good60%top-5 brand share — brands hold most of the demand
Price range
Good£3.34–£40.84cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Good£462K£462K/yr · 471K searches
Avg price
Good£12.87avg listing price — sweet spot $15–$100
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Review moat
Bad5,184.31avg incumbent reviews — the moat a new listing must climb
Growth
Bad-22.7%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, voltage tester is a £462K/yr Amazon United Kingdom market (471K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Feb–Mar. Verdict: Worth a look — 57/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
voltage tester market data
- Units sold / yr
- 30K–40K
- avg 1,000–1,250/product
- Revenue / yr
- £386K–£515K
- units × avg price
- Conversion rate
- 7.6%
- Avg BSR
- #23
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 3.2%
- Avg brand age
- 41 months
- Avg seller age
- 169 days
Competition & brand share
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.Brands
21 falling
Sellers
69
Top-5 brand share
60%
Top 20: 99%
Top-5 click share
52%
Top 20: 90%
Open market
33%
- KAIWEETS20%
- Fluke15%
- Aicevoos9%
- VENLAB9%
- Martindale7%
- AstroAI7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -22.7% search growth over the last 90 days.Peak months: Feb, Mar · busiest ÷ quietest = 2.1×
Top voltage tester search terms
- voltage tester111K/yr
- electrical tester49K/yr
- voltage tester pen42K/yr
- electric tester33K/yr
- continuity tester25K/yr
- circuit tester23K/yr
- electric tester pen22K/yr
- non contact voltage tester22K/yr
- volt stick17K/yr
- voltage pen13K/yr
Top voltage 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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 1AC II VoltAlert - Non-Contact Voltage Detector Pen CAT IV 1000V
Fluke£21.964.5★15,146 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
AstroAI Digital Multimeter with Backlit LCD Portable Volt Meter Measures Voltage Current Resistance; Tests Continuity Diode Multi Tester with Non-slip Rubber Armor for DIY Home; CAT III 300V
AstroAI£7.464.6★54,963 rev
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£6.654.5★1,673 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
Digital Multimeter Voltmeter Battery Voltage Multi Tester Continuity Tester Ohm Volt Ampere Meter AC/DC Voltage Current Resistance Diode Transistor Large LCD Display and Backlight
RICOKEY£7.323,898 rev
SURFOU Voltage Tester Pen Dual-Range AC 12v/48v~1000v Non Contact Detector with NCV LED Light Audible Alarm Indicator Wire Breakpoint Finder and Live/Neutral Cable Detection
SURFOU£7.32135 rev
2-in-1 High-Torque Magnetic Screwdriver with Electric Voltage Tester - Portable Flathead Detector Pen
Siyinzu£3.3855 rev
JTHEW Grip Strength Tester Trainer - Electronic Hand Dynamometer of 400lbs/180kg & Grip strengthener with Adjustable Resistance for Sports
JTHEW£24.42601 rev
Trending
90-day click momentumJTHEW Grip Strength Tester Trainer - Electronic Hand Dynamometer of 400lbs/180kg & Grip strengthener with Adjustable Resistance for Sports
JTHEW£24.424.6★
2-in-1 High-Torque Magnetic Screwdriver with Electric Voltage Tester - Portable Flathead Detector Pen
Siyinzu£3.383.8★
Digital Multimeter Voltmeter Battery Multi Tester Voltage Ohmmeter AC DC Volt OHM Amp Current Meter Continuity Circuit Resistance Diode Electrical Tester Ammeter with LCD Display Backlight
Beizkna£7.414.4★
PaulStore 2-Piece Electrical Mains Voltage Tester Screwdriver Set Insulated VDE Rated for Safety 100-500V AC Test Range Professional Electrician Tool
PaulStore£3.344.6★
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★
What buyers say about voltage tester
What buyers praise and complain about, mined from review topics.What buyers love
“Great value for money”
“Easy to use”
“Excellent product”
“As advertised”
“Tester works well”
“Perfect multimeter”
“it works well”
“Has instructions”
“easy to carry”
“the sizes are great”
What buyers complain about
“Very poor quality - unusable”
“barely functional for proper use”
“Not sure how accurate the readings are”
“Breaks easily”
“Very low budget item”
“Dead Batteries”
“Display would not zero despite changing parameters etc”
“The instruction book isn't the best”
“But unfortunately I must have been sent a faulty product”
“Weak voltstick”
Top return reasons
Common questions
- Is voltage tester profitable to sell on Amazon United Kingdom?
- The niche generates £462K/yr across 29 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -22.7%. Flapen's verdict: Worth a look (57/100).
- How competitive is the voltage tester niche?
- 21 brands and 69 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 60% of demand.
- What do buyers complain about in voltage tester?
- Top complaints mined from reviews: Quality-Overall, Functionality-Overall, Measurement/Reading Accuracy. The return rate is 1.3%.
- When does demand for voltage tester peak?
- Demand peaks in Feb–Mar; the busiest month runs 2.1× the quietest.
- What does it cost to enter the voltage tester niche?
- Listings span £3.34–£40.84; the average listing price is £12.87 (sweet spot $15–$100). The average incumbent carries 5,184 reviews — the moat a new listing must climb.