water thermometer
Skip itA concentrated shelf (top 5 take 79% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Great9.9%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Review moat
Okay3,261.2avg incumbent reviews — the moat a new listing must climb
Price range
Bad£3.30–£18.37cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-7.2%90-day search growth — must beat 0% to launch
Market size
Bad£75K£75K/yr · 116K searches
Avg price
Bad£6.47avg listing price — sweet spot $15–$100
Competition
Bad79%top-5 click share — a locked-up shelf
According to Flapen's Amazon United Kingdom niche tracking, water thermometer is a £75K/yr Amazon United Kingdom market (116K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jan. Verdict: Skip it — 42/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
water thermometer market data
- Units sold / yr
- 15K–20K
- avg 1,250–1,500/product
- Revenue / yr
- £97K–£129K
- units × avg price
- Conversion rate
- 9.9%
- Avg BSR
- #9
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 70%
- Out of stock
- 0.0%
- Avg brand age
- 41 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.Brands
10 falling
Sellers
18
Top-5 brand share
79%
Top 20: 100%
Top-5 click share
79%
Top 20: 100%
Open market
15%
- BOMATA47%
- YYAOEMI10%
- Thermometer World10%
- DOQAUS7%
- Eidyer6%
- Jsdoin5%
- Open — no brand owns it (4 brands, 15%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 1.5×
Top water thermometer search terms
- water thermometer51K/yr
- water temperature thermometer26K/yr
- waterproof thermometer6K/yr
- water temperature probe7K/yr
- thermometer for water temperature5K/yr
- water thermometer legionella3K/yr
- thermometer water4K/yr
- water thermometer digital8K/yr
- thermometer for water4K/yr
- digital water thermometer3K/yr
Top water thermometer 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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
BOMATA Waterproof IPX7 Thermometer for Water Liquid Candle and Cooking. Instant Read Food Thermometer with Long Probe for Cooking Meat BBQ! T101 Black
BOMATA£6.814.5★2,367 rev
YYAOEMI Digital Kitchen Thermometers with Large LCD Screen Long Probe Thermometer Instant Read Auto Off / Button Accurate Water Temperature Thermometer for Beverage Grill BBQ Food Cooking
YYAOEMI£4.014.2★181 rev
Bath Thermometer - Check Bath Water Temperature with This Easy to Use Bathing Temperature Thermometer
Thermometer World£3.304.2★631 rev
DOQAUS Meat Thermometers 3S Instant Read Food Thermometer Accurate Meat Thermometer Probe With Backlight Foldable Long Probe Auto On/Off Cooking Thermometers for Kitchen BBQ Water Milk(Black)
DOQAUS£5.894.5★2,216 rev
Eidyer Digital LCD Thermometer Temperature Monitor with External Waterproof Probe for Refrigerator Aquarium FishTank Water Temperature Thermodetector -Black 4.8cm×2.8cm×1.5cm
Eidyer£4.304.1★1,486 rev
Newest
by launch dateDOQAUS Meat Thermometers 3S Instant Read Food Thermometer Accurate Meat Thermometer Probe With Backlight Foldable Long Probe Auto On/Off Cooking Thermometers for Kitchen BBQ Water Milk(Black)
DOQAUS£5.892,216 rev
YYAOEMI Digital Kitchen Thermometers with Large LCD Screen Long Probe Thermometer Instant Read Auto Off / Button Accurate Water Temperature Thermometer for Beverage Grill BBQ Food Cooking
YYAOEMI£4.01181 rev
AQUAVERITY Scoop Bath Thermometer to Measure Water Temperature in Swimming Pool Hot Tub Ice Bath Spa Wild Swimming Easy to Use Water Temperature Thermometer
AQUAVERITY£6.94210 rev
BOMATA Waterproof IPX7 Thermometer for Water Liquid Candle and Cooking. Instant Read Food Thermometer with Long Probe for Cooking Meat BBQ! T101 Black
BOMATA£6.812,367 rev
Jsdoin Meat Thermometer Digital Meat Food Thermometer Instant Read Cooking Thermometer with Probe Tip Cover LCD Screen Perfect for Kitchen Cooking BBQ Water Meat Milk(Battery Included)
Jsdoin£3.772,157 rev
Trending
90-day click momentumDOQAUS Meat Thermometers 3S Instant Read Food Thermometer Accurate Meat Thermometer Probe With Backlight Foldable Long Probe Auto On/Off Cooking Thermometers for Kitchen BBQ Water Milk(Black)
DOQAUS£5.894.5★
Extech 39240 Waterproof Stem Type Thermometer
Extech£18.374.5★
Bath Thermometer - Check Bath Water Temperature with This Easy to Use Bathing Temperature Thermometer
Thermometer World£3.304.2★
Eidyer Digital LCD Thermometer Temperature Monitor with External Waterproof Probe for Refrigerator Aquarium FishTank Water Temperature Thermodetector -Black 4.8cm×2.8cm×1.5cm
Eidyer£4.304.1★
BOMATA Waterproof IPX7 Thermometer for Water Liquid Candle and Cooking. Instant Read Food Thermometer with Long Probe for Cooking Meat BBQ! T101 Black
BOMATA£6.814.5★
What buyers say about water thermometer
What buyers praise and complain about, mined from review topics.What buyers love
“good value for money”
“Excellent product”
“Easy to use”
“Works as it should”
“It does the job”
“The temperature was correct”
“Good battery life”
“cleans well”
“It does a job”
“I think it was fairly accurate”
What buyers complain about
“Breaks easily”
“Failed to work”
“Feels cheap, looks cheap, at least it was cheap”
“Only had 2 months and despite changing the battery it is showing the incorrect temperature”
“Cheap”
“Really bad thermometer”
“not waterproof”
“No screen display”
“Lasted just over a year before over-reading the temperature by about 35c”
“the plastic is brittle”
Top return reasons
Common questions
- Is water thermometer profitable to sell on Amazon United Kingdom?
- The niche generates £75K/yr across 10 tracked products. 90-day search growth is -7.2%. Flapen's verdict: Skip it (42/100).
- How competitive is the water thermometer niche?
- 10 brands and 18 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in water thermometer?
- Top complaints mined from reviews: Durability, Functionality-Overall, Quality-Overall. The return rate is 0.5%.
- When does demand for water thermometer peak?
- Demand peaks in Jan; the busiest month runs 1.5× the quietest.
- What does it cost to enter the water thermometer niche?
- Listings span £3.30–£18.37; the average listing price is £6.47 (sweet spot $15–$100). The average incumbent carries 3,261 reviews — the moat a new listing must climb.