vacuum gauge
Worth a lookShows a sweet-spot price point ($40.89 avg), but prices mostly outside the sweet spot ($6.76–$258.97) keeps it on the watch list.
Avg price
Incredible$40.89avg listing price — sweet spot $15–$100
Review moat
Good537.85avg incumbent reviews — the moat a new listing must climb
Conversion
Good5.9%search→purchase rate — share of searches ending in a sale
Returns
Good2.4%return rate — above 5% kills the launch gate
Market size
Good$542K$542K/yr · 225K searches
Brand share
Good73%top-5 brand share — brands hold most of the demand
Growth
Good+21.0%90-day search growth — must beat 0% to launch
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Price range
Okay$6.76–$258.97cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, vacuum gauge is a $542K/yr Amazon United States market (225K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 55/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
vacuum gauge market data
- Units sold / yr
- 15K–20K
- avg 750–1,000/product
- Revenue / yr
- $613K–$818K
- units × avg price
- Conversion rate
- 5.9%
- Avg BSR
- #25
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 75%
- Out of stock
- 4.7%
- Avg brand age
- 67 months
- Avg seller age
- 180 days
Competition & brand share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
16 rising
Sellers
116
Top-5 brand share
73%
Top 20: 100%
Top-5 click share
61%
Top 20: 100%
Open market
20%
- Hromee26%
- NYXOVA18%
- senctrl14%
- 8MILELAKE8%
- Acymner8%
- OTC7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +21.0% search growth over the last 90 days.Peak months: Apr, May, Jun · busiest ÷ quietest = 2.3×
Top vacuum gauge search terms
- vacuum gauge94K/yr
- vacuum gauge automotive47K/yr
- automotive vacuum gauge13K/yr
- vacuum gauges12K/yr
- carburetor vacuum gauge9K/yr
- vacuum gauge carburetor8K/yr
- vacuum pressure gauge9K/yr
- vacuum guage5K/yr
- engine vacuum gauge5K/yr
- carb vacuum gauge3K/yr
Top vacuum gauge 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 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Hromee Fuel Pump and Vacuum Tester Gauge Carburetor Pressure Diagnostics Leakage Tool Kit
Hromee$19.804.5★1,281 rev
NYXOVA Vacuum and Fuel Pump Tester Gauge Kit Gauge Leak Carburetor Pressure Diagnostics Tool Kit Leak Carburetor Pressure Diagnostics (Blue)
NYXOVA$15.234.6★197 rev
SENCTRL 30 inHg Vacuum Silicone Oil Liquid Filled Low Pressure Gauge 2.5 Dial Size 1/4 NPT Lower Mount Stainless Steel Case for Air Conditioning Manifolds HVAC Air Pump Vacuum Test
senctrl$9.904.5★175 rev
8MILELAKE Fuel Pump and Vacuum Tester Gauge Leak Carburetor Pressure Diagnostics
8MILELAKE$18.814.5★1,169 rev
NYXOVA Vacuum and Fuel Pump Tester Gauge Kit Gauge Leak Carburetor Pressure Diagnostics Tool Kit Leak Carburetor Pressure Diagnostics (Red)
NYXOVA$15.144.6★197 rev
Newest
by launch date
AUTOOL PT502 Digital Vacuum Pressure Gauge Automotive Vacuum Leak Tester with Temperature Compensation 101kPa High Accuracy Engine Intake Exhaust EGR Diagnostic Tool 12V Car Powered
AUTOOL$28.4911 rev
PESIKO 6Pcs Vacuum Pressure Gauge Kit Leak Carburetor Pressure Diagnostics Kit Fuel Pump Gauge Tester for Carburetors & Vacuum Systems
PESIKO$31.9722 rev
SENCTRL 30 inHg to 30 Psi Vacuum Glycerin Liquid Filled Low Pressure Gauge 2.5 Dial Size 1/4 NPT Lower Mount Stainless Steel Case for Air Conditioning Manifolds HVAC Air Pump Vacuum Test
senctrl$9.9635 rev
VECKYJL Vacuum Gauge Automotive Tester Kit Carburetor Fuel Pressure Tester Diagnostics Tool Kit
VECKYJL$20.1447 rev
BPSSDI 30inHg Vacuum Pressure Gauge Water Pressure Gauge 2.5 Dial Size 1/4 NPT Lower Mount 304 Stainless Steel Case for Pneumatic Air Compressor RV Regulator Valve Test(with Tape)
BPSSDI$6.7618 rev
Trending
90-day click momentumAUTOOL PT502 Digital Vacuum Pressure Gauge Automotive Vacuum Leak Tester with Temperature Compensation 101kPa High Accuracy Engine Intake Exhaust EGR Diagnostic Tool 12V Car Powered
AUTOOL$28.494.6★
Acymner Vacuum and Fuel Pump Tester Gauge Kit | Gauge Leak Carburetor Pressure Diagnostics Tool Kit (Red)
Acymner$15.534.7★
ATPEAM Vacuum and Fuel Pump Tester Gauge Kit Fuel Pump Pressure Carburetor Intake Manifold Vacuum Test
ATPEAM$15.364.5★
NYXOVA Vacuum and Fuel Pump Tester Gauge Kit Gauge Leak Carburetor Pressure Diagnostics Tool Kit Leak Carburetor Pressure Diagnostics (Blue)
NYXOVA$15.234.6★
8MILELAKE Fuel Pump and Vacuum Tester Gauge Leak Carburetor Pressure Diagnostics
8MILELAKE$18.814.5★
What buyers say about vacuum gauge
What buyers praise and complain about, mined from review topics.What buyers love
“Very well made”
“Good value”
“Works as it should”
“that gauge works fine”
“Easy to use”
“This is a good accurate gauge if used properly”
“It feels solid”
“Good vacuum gauge”
“weight are just right”
“Works great to adjust carburetor”
What buyers complain about
“Guage received and wasn't calibrated to Zero”
“Poor Quality”
“Busted first use”
“Quick leak or vacuum loss tool”
“Total waste of money”
“I couldn't use it for the repair job I bought it for”
“Don't last very long on a vacuum system”
“Needs to be cleaned often or it will give you bad readings”
“Install one didn't work at all”
“This CPS vacuum gauge is not wireless”
Top return reasons
Common questions
- Is vacuum gauge profitable to sell on Amazon United States?
- The niche generates $542K/yr across 20 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +21.0%. Flapen's verdict: Worth a look (55/100).
- How competitive is the vacuum gauge niche?
- 16 brands and 116 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in vacuum gauge?
- Top complaints mined from reviews: Measurement/Reading Accuracy, Quality-Overall, Durability. The return rate is 2.4%.
- When does demand for vacuum gauge peak?
- Demand peaks in Apr–May–Jun; the busiest month runs 2.3× the quietest.
- What does it cost to enter the vacuum gauge niche?
- Listings span $6.76–$258.97; the average listing price is $40.89 (sweet spot $15–$100). The average incumbent carries 538 reviews — the moat a new listing must climb.