aquarium thermometer
Worth a lookShows low returns (0.9%), but soft demand (-32.0% this quarter) keeps it on the watch list.
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Brand share
Great53%top-5 brand share — no brand owns this niche
Conversion
Great7.5%search→purchase rate — share of searches ending in a sale
Review moat
Good942.72avg incumbent reviews — the moat a new listing must climb
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Market size
Okay€109K€109K/yr · 234K searches
Avg price
Bad€6.20avg listing price — sweet spot $15–$100
Price range
Bad€2.17–€17.40cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-32.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon Germany niche tracking, aquarium thermometer is a €109K/yr Amazon Germany market (234K searches/yr). The top 5 brands hold 53% of demand. Demand peaks in Jan–Feb. Verdict: Worth a look — 53/100.
Data updated Jul 13, 2026 · scored weekly · How we score niches
aquarium thermometer market data
- Units sold / yr
- 15K–20K
- avg 500–750/product
- Revenue / yr
- €93K–€124K
- units × avg price
- Conversion rate
- 7.5%
- Avg BSR
- #15
- Page quality
- 0%
- Prime
- 96%
- Sponsored
- 80%
- Out of stock
- 9.9%
- Avg brand age
- 41 months
- Avg seller age
- 193 days
Competition & brand share
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.Brands
19 falling
Sellers
38
Top-5 brand share
53%
Top 20: 100%
Top-5 click share
50%
Top 20: 94%
Open market
41%
- RUIZHI20%
- Measury9%
- JBL9%
- Juwel Aquarium9%
- OQIMAX7%
- Generisch6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -32.0% search growth over the last 90 days.Peak months: Jan, Feb · busiest ÷ quietest = 1.9×
Top aquarium thermometer search terms
- aquarium thermometer133K/yr
- thermometer aquarium45K/yr
- aquarium thermometer digital22K/yr
- thermometer aquarium digital5K/yr
- aquarium thermometer innen8K/yr
- aquarium temperaturanzeige4K/yr
- aquarienthermometer5K/yr
- aquariumthermometer4K/yr
- thermometer aquarium innen8K/yr
Top aquarium 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Aquarium Thermometer Mini Aquarium Thermometer Digital LED-Anzeige Hochpräzisions-Temperatursensor Geeignet für Süßwasser-Meeresaquarien
RUIZHI€5.674.5★1,220 rev
JUWEL Aquarium - Digital Thermometer 4.0 - passend für alle Aquarien
Juwel Aquarium€17.404.4★198 rev
Measury Aquarium Thermometer Wasserdicht Digitales Aquarien Thermometer für Süßwasser und Meerwasser TM10
Measury€7.063.7★5,627 rev
JBL Aquarien-Thermometer Premium 6140700 Schlankes Glas-Präzisionsthermometer Inkl. Saughalter
JBL€4.674.4★2,025 rev
OQIMAX Aquarium Thermometer Mini Digital Aquarienthermometer LED Display with Touch Screen High Precision Temperature Sensor Glue-On Mini Marine Temperature Sensor for Freshwater Marine Aquariums
OQIMAX€6.514.6★180 rev
Newest
by launch date
Aquarium Thermometer Analog Glas mit Saugnapf Präzises Wasserthermometer für Aquarium Wassertemperatur Messgerät Innen für Süß- und Meerwasser Leicht Ablesbar Hohe Genauigkeit Ohne Batterie
Generisch€6.5235 rev
2 Stück Aquarium Thermometer Glasthermometer Aquarium Aquariums Thermometer Innen Präziser Wassertemperaturmesser Für Fischbecken Leicht Ablesbare Skala Korrosionsbeständig
Miyanvuo€2.8524 rev
JUWEL Aquarium - Digital Thermometer 4.0 - passend für alle Aquarien
Juwel Aquarium€17.40198 rev
Aquarium Thermometer Kabellos Mini Wasserthermometer Digital digitales LCD-Wassertemperatur-Thermometer für Aquarium Aquarium Meeresreptilien Terrarium (weiß)
Houdian€4.7993 rev
Aquarium-Thermometer Mini Thermometer Aquarium Digital mit Hochpräzisionssensor und Led für Fischbehälter Süßwasser- und Meerwasser-Aquarien
Wowfast€5.2294 rev
Trending
90-day click momentum
Flintronic Aquariumthermometer Mini Aquariumthermometer Digital LED Kabelloses Temperaturmessgerät mit Temperatur Messgerät Aufkleber Marine Thermometer für Süßwasser Meerwasser Reptilien
flintronic€4.303.7★
JBL Aquarien-Thermometer Premium 6140700 Schlankes Glas-Präzisionsthermometer Inkl. Saughalter
JBL€4.674.4★
Aquarium Thermometer Analog Glas mit Saugnapf Präzises Wasserthermometer für Aquarium Wassertemperatur Messgerät Innen für Süß- und Meerwasser Leicht Ablesbar Hohe Genauigkeit Ohne Batterie
Generisch€6.524.2★
ORIA Aquarium Thermometer LED Anzeige Digital Temperaturmessgerät Aquarium () Kleben-On Mini Marine Temperatursensor für Süßwasser Meerwasser Reptilien
ORIA€6.884.4★
Aquarium Thermometer Kabellos Mini Wasserthermometer Digital digitales LCD-Wassertemperatur-Thermometer für Aquarium Aquarium Meeresreptilien Terrarium (weiß)
Houdian€4.794.3★
What buyers say about aquarium thermometer
What buyers praise and complain about, mined from review topics.What buyers love
“Einfache Handhabung”
“Top Produkt”
“Hält was es verspricht”
“Passt”
“bestes Preis -Leistungsverhältnis”
“Das Gerät funktioniert einwandfrei”
“schlicht im Design”
“Muss zum ablesen eingeschaltet werden dadurch lange Batterie Laufzeit”
“funktioniert immer zuverlässig”
“Optisch auch ganz gut anzuschauen”
What buyers complain about
“Müll”
“Schwer lesbar”
“Funktioniert nicht”
“Die halten aber auch nicht lange, lösen sich ständig”
“klein”
“Batterie gehen schnell leer”
“Es hält nicht an der Scheibe es fällt dauerhaft immer ab Kleber ist nicht stark Genug”
“Keine neue Ware”
“Sehr schade für das Geld”
“Hält nicht”
Top return reasons
Common questions
- Is aquarium thermometer profitable to sell on Amazon Germany?
- The niche generates €109K/yr across 25 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -32.0%. Flapen's verdict: Worth a look (53/100).
- How competitive is the aquarium thermometer niche?
- 19 brands and 38 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 53% of demand.
- What do buyers complain about in aquarium thermometer?
- Top complaints mined from reviews: Qualität insgesamt, Benutzerfreundlichkeit, Funktionalität insgesamt. The return rate is 0.9%.
- When does demand for aquarium thermometer peak?
- Demand peaks in Jan–Feb; the busiest month runs 1.9× the quietest.
- What does it cost to enter the aquarium thermometer niche?
- Listings span €2.17–€17.40; the average listing price is €6.20 (sweet spot $15–$100). The average incumbent carries 943 reviews — the moat a new listing must climb.