oil tank level gauge
Skip itSoft demand (-59.5% this quarter) — this niche doesn't clear our bar today.
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Avg price
Great£66.02avg listing price — sweet spot $15–$100
Review moat
Great390.82avg incumbent reviews — the moat a new listing must climb
Price range
Great£15.32–£128.91cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good£287K£287K/yr · 114K searches
Conversion
Okay3.8%search→purchase rate — share of searches ending in a sale
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Returns
Okay3.2%return rate — above 5% kills the launch gate
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Growth
Bad-59.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, oil tank level gauge is a £287K/yr Amazon United Kingdom market (114K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Jan–Feb–Mar–Nov–Dec. Verdict: Skip it — 48/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
oil tank level gauge market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- £264K–£330K
- units × avg price
- Conversion rate
- 3.8%
- Avg BSR
- #218
- Page quality
- 0%
- Prime
- 82%
- Sponsored
- 59%
- Out of stock
- 7.7%
- Avg brand age
- 39 months
- Avg seller age
- 214 days
Competition & brand share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
11 rising
Sellers
18
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
18%
- PlumbEZ30%
- Watchman17%
- Sonic Watchman15%
- Dumenix9%
- Kingspan5%
- Generic5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -59.5% search growth over the last 90 days.Peak months: Jan, Feb, Mar, Nov, Dec · busiest ÷ quietest = 4.4×
Top oil tank level gauge search terms
- oil tank level monitor27K/yr
- watchman oil tank monitor23K/yr
- oil tank level gauge26K/yr
- oil tank monitor10K/yr
- watchman5K/yr
- heating oil tank level monitor4K/yr
- watchman sonic oil level monitor7K/yr
- oil tank gauge7K/yr
- oil watchman4K/yr
- watchman sonic2K/yr
Top oil tank level 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Magnus HAWKi Smart Oil Tank Level Monitor Radar Gauge - Bluetooth Connection to Phone App Universal Fit - No Drilling Required - Plastic Oil Tank Level Gauge
PlumbEZ£105.034.6★132 rev
Watchman Sonic Advanced Oil Tank Level Gauge with Audible Alarm - Oil Tank Level Monitor and Tank Level Sensor
Watchman£76.974.4★240 rev
Watchman Sonic Oil Level Monitor
Sonic Watchman£76.014.5★1,663 rev
Oil Tank Level Monitor Liquid Meter Water Sensor for Oil Tank Cordless Design Transmitter Automatic Control Level Gauge with Indoor Temperature Gauge Suitable for Household Plant Use
Dumenix£53.660.0★0 rev
Kingspan Watchman Sonic Advanced Oil Level Monitor
Kingspan£78.294.2★69 rev
Newest
by launch date
Oil Tank Level Monitor Liquid Level Meter Water Levels Sensor Oil Tank Cordless Design Transmitter Automatic Control Multifunctional Levels Gauge With Indoor Temperature Gauge for Household Use
Hocomay£45.800 rev
Watchman SENSiT Smart WiFi Oil Tank Monitor & Gauge Kit App Connected Fuel Tank Level Sensor for Heating Oil Kerosene Diesel & Water Alexa Compatible (Watchman Sensit - No Plug)
PlumbEZ£116.811 rev
Watchman SENSiT Smart WiFi Oil Tank Monitor & Gauge Kit App Connected Fuel Tank Level Sensor for Heating Oil Kerosene Diesel & Water Alexa Compatible Watchman Sensit - With Local Display Plug
PlumbEZ£128.913 rev
Oil Tank Level Monitor Liquid Meter Water Sensor for Oil Tank Cordless Design Transmitter Automatic Control Level Gauge with Indoor Temperature Gauge Suitable for Household Plant Use
Dumenix£53.660 rev
Oil Tank Level Gauge For Easy Reading Of Levels 1-5M Wireless Liquid Level Sensor with LCD Display IP65 Waterproof Outdoor Oil Tank Level Gauge with Visual Alarm for RV Home Heating Industrial Tanks
FABULETTA£32.321 rev
Trending
90-day click momentumOil Tank Level Monitor Liquid Level Meter Water Levels Sensor Oil Tank Cordless Design Transmitter Automatic Control Multifunctional Levels Gauge With Indoor Temperature Gauge for Household Use
Hocomay£45.800.0★
Oil Tank Level Monitor Liquid Meter Water Sensor for Oil Tank Cordless Design Transmitter Automatic Control Level Gauge with Indoor Temperature Gauge Suitable for Household Plant Use
Dumenix£53.660.0★
Watchman SENSiT Smart WiFi Oil Tank Monitor & Gauge Kit App Connected Fuel Tank Level Sensor for Heating Oil Kerosene Diesel & Water Alexa Compatible Watchman Sensit - With Local Display Plug
PlumbEZ£128.914.6★
Watchman SENSiT Smart WiFi Oil Tank Monitor & Gauge Kit App Connected Fuel Tank Level Sensor for Heating Oil Kerosene Diesel & Water Alexa Compatible (Watchman Sensit - No Plug)
PlumbEZ£116.815.0★
5ft Float Gauge for Oil/Fuel/Heating/Water Tanks Oil Storage Volume Monitor Fuel Storage Level Monitor Water Sensor Tank Capacity Gauge - (5ft)
PlumbEZ£24.414.2★
What buyers say about oil tank level gauge
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to install”
“Kingspan watchman is probably the best brand around”
“Works as advertised”
“It works”
“So much easier”
“Easy to connect”
“Its just what it says in the advert fit perfect work straight away thank you”
“An easy replacement”
“Great to see oil level instead of having to dip tank”
“works great and very good range for bluetooth”
What buyers complain about
“Cant get it to work”
“Took a few days to settle down as said by instructions”
“doesnt last”
“Had one of these for 21 years then it stopped working changed the battery”
“Cheap”
“Not sure how accurate they are”
“Eventually I worked out that it was the 2.4g wifi signal that was causing the issue”
“Didnt fit”
“Not very easy to fitt”
“Water leaked into gauge, froze, and broke it open”
Top return reasons
Common questions
- Is oil tank level gauge profitable to sell on Amazon United Kingdom?
- The niche generates £287K/yr across 17 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -59.5%. Flapen's verdict: Skip it (48/100).
- How competitive is the oil tank level gauge niche?
- 11 brands and 18 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in oil tank level gauge?
- Top complaints mined from reviews: Functionality-Overall, Instructions/User Manual/Troubleshooting, Durability. The return rate is 3.2%.
- When does demand for oil tank level gauge peak?
- Demand peaks in Jan–Feb–Mar–Nov–Dec; the busiest month runs 4.4× the quietest.
- What does it cost to enter the oil tank level gauge niche?
- Listings span £15.32–£128.91; the average listing price is £66.02 (sweet spot $15–$100). The average incumbent carries 391 reviews — the moat a new listing must climb.