Is water temp gauge profitable to sell on Amazon United States?

The niche generates $162K/yr across 50 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is +17.4%. Flapen's verdict: Worth a look (60/100).

How competitive is the water temp gauge niche?

30 brands and 106 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 61% of demand.

What do buyers complain about in water temp gauge?

Top complaints mined from reviews: Measurement/Reading Accuracy, Functionality-Overall, Durability. The return rate is 3.1%.

When does demand for water temp gauge peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the water temp gauge niche?

Listings span $6.28–$71.30; the average listing price is $24.96 (sweet spot $15–$100). The average incumbent carries 424 reviews — the moat a new listing must climb.

water temp gauge

Worth a look

Shows a sweet-spot price point ($24.96 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Incredible$24.96

avg listing price — sweet spot $15–$100

Price range

Great$6.28–$71.30

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Great36%

top-5 click share — an open shelf

Review moat

Great423.52

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Brand share

Good61%

top-5 brand share — brands hold most of the demand

Returns

Okay3.1%

return rate — above 5% kills the launch gate

Growth

Okay+17.4%

90-day search growth — must beat 0% to launch

Market size

Okay$162K

$162K/yr · 242K searches

Conversion

Okay2.7%

search→purchase rate — share of searches ending in a sale

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, water temp gauge is a $162K/yr Amazon United States market (242K searches/yr). The top 5 brands hold 61% of demand. Verdict: Worth a look — 60/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

water temp gauge market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: $150K–$200K; units × avg price
Conversion rate: 2.7%
Avg BSR: #252
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 0.0%
Avg brand age: 53 months
Avg seller age: 161 days

Competition & brand share

Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.

Brands

30 rising

Sellers

106

Top-5 brand share

61%

Top 20: 93%

Top-5 click share

36%

Top 20: 77%

Open market

34%

Dyno Racing18%
ZHSYMX16%
Bosch12%
Dorman8%
GlowShift7%
UBOG6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +17.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top water temp gauge search terms

water temp gauge40K/yr +36.9%2.2% conv.
temperature gauge for car25K/yr +14.3%1.7% conv.
coolant temp gauge22K/yr +22.2%2.8% conv.
water temperature gauge35K/yr -16.5%1.9% conv.
car temperature gauge14K/yr +54.3%1.6% conv.
temp gauge automotive13K/yr +15.3%2.6% conv.
medidor de temperatura para carro12K/yr -9.9%0.5% conv.
mechanical water temp gauge8K/yr +16.8%2.5% conv.
coolant temperature gauge8K/yr +45.7%1.9% conv.
reloj de temperatura para carro9K/yr -7.5%0.5% conv.

All search terms

Top water temp 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Dyno Racing 2 52mm 12V Pointer Mechanical Water Temperature Temp Gauge 40-130 110-265 Yellow Light Car Meter with Sensor NPT 1/2 1.8m Wire Length

Dyno Racing$16.774.3★348 rev

ZHSYMX Universal 52mm Water Temperature Gauge with Alarm and 1/8 Npt Sensor Car Digital Meter Red Display Green Ambient Light Temp 100-300F(-17~187C)

ZHSYMX$18.724.2★603 rev

Dorman 7-123 Water Temperature Gauge - Mechanical Universal Fit

Dorman$30.064.3★1,006 rev

UBOG Water Temp Gauge 2 52mm Water Temp Gauge 100-250 Temperature Gauge for Car Car Accessories Car Temperature Gauge with Led Backlight Water Temp Gauges Use for Cars Trucks Vehicles Ships

UBOG$9.684.0★118 rev

BOSCH SP0F000045 Style Line 2 Mechanical Water/Oil Temperature Gauge (White Dial Face Chrome Bezel)

Bosch$27.814.4★401 rev

Newest

by launch date

BLLYOGU 2 52mm Water Temperature Gauge 100-250 with Sensor 12V Digital Temp Meter Kit for Marine Boat Car Truck Automotive Engine Cooling System (Black)

BLLYOGU$14.3924 rev

7mo ago

BYYOUIV 2 Water Temperature Gauge with Sensor 100-250 Digital Thermometer for Cars

BYYOUIV$13.1114 rev

7mo ago

Onrlid Water Temp Gauge Universal 2/52mm Temperature Gauge 100-250 Automotive Water Temperature Gauges with LED Backlight DC 12V Automotive Gauges for Cars Trucks Vehicles Ships

Onrlid$9.9720 rev

8mo ago

JJCOCO Water Temperature Gauge with 1/8NPT Sensor & Bracket 300F Digital LED Display Water Coolant Temperature Gauge for Cars Trucks Ships Vehicle Automotive Boat Marine 2/52mm

JJCOCO$21.9538 rev

1y ago

JJCOCO Water Temperature Gauge with 1/8NPT Sensor & Bracket 300F Digital LED Display Water Coolant Temperature Gauge for Cars Trucks Ships Vehicle Automotive Boat Marine 2/52mm

JJCOCO$22.2138 rev

1y ago

What buyers say about water temp gauge

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall13%

“Excellent product”

Efficiency12%

“Use it with a bucket water heater, works well”

Value For Money11%

“Great value”

Assembly/Installation11%

“Really nice and easy to set up”

Advertised Vs Actual Product8%

“As advertised”

Measurement/Reading Accuracy7%

“Accurate and worthy”

Ease Of Use7%

“Easy peasy”

Size-Overall6%

“Great fit”

Temperature Control3%

“Solid tells temperature very well”

Brightness/Shine/Glow2%

“The light was a nice addition as well so I could wire it into the dash lights”

What buyers complain about

Measurement/Reading Accuracy18%

“This item displays highly inaccurate information”

Functionality-Overall18%

“Suddenly stopped showing speed”

Durability12%

“Didn't last”

Quality-Overall8%

“Trash”

Size-Overall6%

“the gauge is very small”

Compatibility-Overall3%

“Does NOT work on 05 Silverado”

Battery Life3%

“3 years before batteries die”

Heating3%

“Its dead on with temperature”

Sensor2%

“The sensor must also be IN the coolant flow or it will not read accurately”

Assembly/Installation2%

“configuring it is very tedious”

Top return reasons

Measurement/Reading Accuracy18%

Functionality-Overall17%

Size-Overall15%

Compatibility-Overall15%

Advertised Vs Actual Product5%

Defective Material/Parts5%

Connectivity-Overall4%

Sensor3%

Value For Money2%