smoke tester
Worth a lookShows a thin review moat (104 avg reviews), but soft demand (-10.5% this quarter) keeps it on the watch list.
Review moat
Great104.48avg incumbent reviews — the moat a new listing must climb
Avg price
Great£67.71avg listing price — sweet spot $15–$100
Brand share
Good64%top-5 brand share — brands hold most of the demand
Returns
Good2.5%return rate — above 5% kills the launch gate
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Price range
Good£40.46–£149.55cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good4.5%search→purchase rate — share of searches ending in a sale
Market size
Okay£257K£257K/yr · 85K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-10.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, smoke tester is a £257K/yr Amazon United Kingdom market (85K searches/yr). The top 5 brands hold 64% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
smoke tester market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- £169K–£203K
- units × avg price
- Conversion rate
- 4.5%
- Avg BSR
- #464
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 20.6%
- Avg brand age
- 40 months
- Avg seller age
- 188 days
Competition & brand share
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
20
Top-5 brand share
64%
Top 20: 100%
Top-5 click share
50%
Top 20: 96%
Open market
29%
- cupeohome19%
- GODIAG16%
- pakowin10%
- MRCARTOOL10%
- JUTA9%
- AUTOOL7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -10.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top smoke tester search terms
- smoke tester for car22K/yr
- smoke tester13K/yr
- car smoke tester13K/yr
- smoke machine automotive9K/yr
- car smoke leak detector5K/yr
- smoke leak detector car8K/yr
- evap4K/yr
- smoke leak detector6K/yr
- automotive smoke machine4K/yr
Top smoke 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 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
cupeohome Automotive Smoke Machine Leak Detector with Built-in Air Pump Smoke Machine Leak Tester EVAP Vacuum Smoke Diagnostic Tester Pipeline Fuel Leakage Detector for 12V Car Motorcycle Boat
cupeohome£45.524.6★21 rev
MRCARTOOL T80 Automotive Smoke Machine Leak Detector with Built-in Air Pump EVAP Vacuum Smoke Diagnostic Tester Smoke Machine Leak Tester Pipeline Fuel Leakage Detector for 12V Car Motorcycle Boat
MRCARTOOL£49.634.6★61 rev
JUTA SD-301 Automotive Smoke Machine Leak Detector with Built-in Air Pump Vehicle Emission Vacuum Exhaust EVAP Leakage Diagnostic Car Smoke Leak Tester Tools Kit
JUTA£40.464.5★25 rev
AUTOOL Smoke Machine Automotive Leak Detector Evap Vacuum Smoke Diagnostic Tester Pipeline Fuel Leakage Detector Compatible with 12V Vehicles
AUTOOL£65.104.2★1,466 rev
pakowin Smoke Machine Automotive - 12V DC EVAP Smoke Machine Leak Tester for Cars
pakowin£45.775.0★3 rev
Newest
by launch dateJUTA SD-301 Automotive Smoke Machine Leak Detector with Built-in Air Pump Vehicle Emission Vacuum Exhaust EVAP Leakage Diagnostic Car Smoke Leak Tester Tools Kit
JUTA£40.4625 rev
Smoke Tester for Car 12V DC Smoke Machine Automotive with Built-in Air Pump EVAP Vacuum Pipeline Fuel Leakage Detector Smoke for Car Motorcycle Boat
PARAOUTIL£47.700 rev
Smoke Machine Automotive with Built-in Air Pump Car Smoke Tester for EVAP Vacuum Leak Detection Smoke Leak Detector for All 12V Vehicles Universal Gas Leak Tester for Car Intake Exhaust System
MOTOCOCHE£46.376 rev
Kuntech Automotive Smoke Leak Detector Kit EVAP System Leak Tester with Full Accessories Universal Pipe Leakage Diagnostic Tool for 12V Vehicles Leak Detector
Kuntech£42.492 rev
Smoke Tester for Car with Pressure Gauge Professional EVAP Smoke Machine Automotive Built-in Air Pump 15 L/min Flow Meter Fuel Leakage Detection Smoke Leak Detector for DC 12V Vehicles
INCENDIOS£75.152 rev
Trending
90-day click momentumJUTA SD-301 Automotive Smoke Machine Leak Detector with Built-in Air Pump Vehicle Emission Vacuum Exhaust EVAP Leakage Diagnostic Car Smoke Leak Tester Tools Kit
JUTA£40.464.5★
Smoke Machine Automotive with Built-in Air Pump Car Smoke Tester for EVAP Vacuum Leak Detection Smoke Leak Detector for All 12V Vehicles Universal Gas Leak Tester for Car Intake Exhaust System
MOTOCOCHE£46.374.8★
THIKPO Automotive Smoke Machine with Built-in Air Pump Smoke Leak Detector for EVAP Vacuum Pipe System Fuel Leakage 12V DC Vehicle Leakage Diagnostic Tester
THIKPO£49.004.4★
Kuntech Automotive Smoke Leak Detector Kit EVAP System Leak Tester with Full Accessories Universal Pipe Leakage Diagnostic Tool for 12V Vehicles Leak Detector
Kuntech£42.495.0★
Smoke Tester for Car 12V DC Smoke Machine Automotive with Built-in Air Pump EVAP Vacuum Pipeline Fuel Leakage Detector Smoke for Car Motorcycle Boat
PARAOUTIL£47.700.0★
What buyers say about smoke tester
What buyers praise and complain about, mined from review topics.What buyers love
“Best money spent”
“Excellent product”
“Leaks can be detected simply cleanly”
“Easy to use”
“Works perfectly”
“The assembly is just hooking it up to a twelve volt car battery”
“it exceeded my expectations”
“maintains stable pressure during testing”
“the overheat protection adds reassurance during longer use”
“it feels solid enough for regular use”
What buyers complain about
“However when I went to pick it up it'd leaked a puddle of oil out of its cable”
“so very small”
“Doesnt work correctly”
“Rubbish had the product 2 months used 3 times now broken wont pump nowhere to speak to anyone about return”
“Found faults i didnt know i had”
“already faulty - after few months in use the heater element burn out”
“is expensive for what it is”
“It feels cheap”
“It has no gauge to show how large are the losses - which would indicate if there is a leak”
“it is a bit difficult to use”
Top return reasons
Common questions
- Is smoke tester profitable to sell on Amazon United Kingdom?
- The niche generates £257K/yr across 23 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is -10.5%. Flapen's verdict: Worth a look (52/100).
- How competitive is the smoke tester niche?
- 17 brands and 20 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 64% of demand.
- What do buyers complain about in smoke tester?
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Functionality-Overall. The return rate is 2.5%.
- When does demand for smoke tester peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the smoke tester niche?
- Listings span £40.46–£149.55; the average listing price is £67.71 (sweet spot $15–$100). The average incumbent carries 104 reviews — the moat a new listing must climb.