capetsma Aquarium Thermometer Digital Fish Tank Thermometer Accurate Reptile Thermometer Temperature Gauge with Large LCD Screen

$9.99

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Price: $9.99
(as of Oct 31, 2025 00:38:29 UTC – Details)


This Mini Digital Aquarium Thermometer comes with modern appearance and compact design, easy-to-read clear LCD Screen delivers accurate temperature readings in your Terrarium. It is important for you to own this fish tank thermometer to keep your pet fish healthy, happy and active.Operation:

1. We already inserted battery ,the LCD will display the real-time water temperature. There is a battery case under the cpetsma logo. Pull it down to replace battery then push upward to close it.
2. Remove the paper, stick this aquarium thermometer digital water temperature gauge on to a transparent tinted background.
3. It is well installed.
4. If you want to switch C / F, press the C/ F selector on the left .

Specification:

Product size: 6.5*3.4*1.0 inch
Deviation: + – 1C / + – 2F
Batteries: 2* CR2032(Included)
Package:

1 x Digital Aquarium Thermometer
2 x CR2032 Battery ( included ) button or coin battery
Product Dimensions ‏ : ‎ 2.36 x 1.96 x 0.39 inches; 1.13 ounces
Item model number ‏ : ‎ CA-03C
Batteries ‏ : ‎ 2 LR44 batteries required. (included)
Date First Available ‏ : ‎ September 14, 2021
Manufacturer ‏ : ‎ capetsma
ASIN ‏ : ‎ B09G6Q9LZK
Best Sellers Rank: #97,533 in Pet Supplies (See Top 100 in Pet Supplies) #82 in Aquarium Thermometers
Customer Reviews: 4.3 4.3 out of 5 stars 359 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

capetsma aquarium thermometer measures water temperature with high accuracy of 1F, Measuring range of 32F – 158F, detect water temperature every 20 seconds, it is a perfect device you need to help your fishes live happier and healthier.
Large LCD Screen displays digital real-time temperature, easy to read and respond if any adjustment needed.
C/F switch key on the left side, press it to change Celsius and Fahrenheit.
No messy wires in fish tank, it keeps your tank clean and safe, protect fishes from Ingestion or electric shock. Digital fish tank thermometer with F/C selector; Powered by 1 x LR1130 battery (included)
We provide 12 months quality guarantee,if you have any question about our product,please contact us,we will reply and help you in 24 hours

Customers say

Customers find the thermometer easy to read, with one mentioning they can see the temperature from four feet away, and appreciate its nice appearance. The functionality, accuracy, and adhesive strength receive mixed feedback – while some say it works great and sticks on well, others report it doesn’t work at all, isn’t accurate, and falls off frequently. The battery life is also mixed, with some saying it comes with a spare battery while others report it doesn’t last long.

13 reviews for capetsma Aquarium Thermometer Digital Fish Tank Thermometer Accurate Reptile Thermometer Temperature Gauge with Large LCD Screen

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  1. Val

    Best aquarium thermostat!
    This thermostat is my favorite for my fish tanks! replaced every one I have with these! It looks chic, and the temperature is very accurate. It’s sticky back is easy to use, and its size and clear window keeps it from being an eye sore! Its the perfect thermometer for my fish tanks at a great price!

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  2. Roger Remington

    Accurate and attractive
    Works well and looks good on the tank.Kids love how it goes invisible unless looking straight on itLasted 19 months till it ticked warmer everyday, unplugged heater and temp still rose on thermostat. Time to replace

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  3. chris miller

    Great look.
    Ordered 2. One is dead on, the other is about two degrees over. Can’t calibrate. So, initial 5 stars for one, and 2 stars for the other. Why 2, and not 1 star? Well, if it holds accurately at two over, I’ll still know the actual temp.About features. This model is only temperature. I like the clean display. The high/ low temp feature of others seems pointless to me, I guess. It’s a nice size, and the display is easy to read. My tanks have a natural aesthetic with browns and greens. You do have to be looking at it from a more direct angle to see clear, but still way easier to read than an analog thermometer. The battery compartment is easy to open, uses small button batteries, which they include a spare as well.There are a bunch of this style for sale on Amazon, with different features and display readings. This model has the highest rating of any I could find, which also swayed my purchase.Comparable models Inown or have tried are the Fluval model that displays both tank and room temp. I own two and they are both accurate. They also use the button style battery, and the battery life is really good. Close to a year. I also own the Hygger, which has the high/ low temp with alarm. It is about 1.5° high. It uses the coin style battery and it battery life is awful. Maybe 1 to 2 months, using Energizer. I actually replaced it with this model, hoping battery life is much better, as it also uses the button style battery.Time will tell. As of now, I like the clean and less obtrusive view of the tank. The Fluval is slightly larger, but without the clear window it does block quite a bit more. So, I think the Fluval is a great choice for bigger tanks/ 40+ gallons, but this is probably better sized for smaller tanks.I’m giving it 4 stars initially. If they were both dead accurate, it would have been 5. If the battery life is less than desired, I will update with a much lower rating, as that is ultimately what drove the purchase.(Photo shows reading of 79.7° with JW analog reading 78°. My probe reads 77.9°)

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  4. Melzie Welzie

    Great Purchase
    I didn’t waste my time buying this item because it not only works well, it looks very nice on the front of my aquarium. I can see the temperature with only a glance.

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  5. Voltaire

    Nice and simple
    Easy to read numbers, accurate.

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  6. David Sh

    Looks cool but doesn’t light up and battery dies
    cool item visually, but battery died within 4 mo ths of use

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  7. Marlin Snell

    Was skeptical…
    I was very skeptical that this would be anything but accurate but it is… placed in a lower corner of my tank as to not block any view, stuck great. Let it acclimate a while and then took my probe thermometer and put that into the tank water, as spot on as one can get, it reads within .2 degrees of my probe! I was expecting at least 2 degrees or more off, but only .2, I’m very happy with that!

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  8. ClevelandRocks

    Very Accurate
    Have bought various thermometers similar to this one. This one is by far the most accurate.

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  9. Cliente Amazon

    El aspecto parecía adecuado.Sin embargo, en menos de un día se despegaba y se caía al suelo.Parece ser que la doble cara no funciona, puesto que la cara que debía estar pegada al termómetro, se ha despegado y ahora tengo que despegar el film adherido al cristal.Hacer constar que se ha vuelto a intentar pegar varias veces y si bien el adhesivo parece funcionar, a las pocas horas, se vuelve a caer.En estas circunstancias es difícil darle uso.

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  10. Martin

    Very clear to read the temperature is near enough .My internal thermometer read 25.5 and this 25.3 so it’s very close and considering it sticks on outside of tank that’s a lot more accurate than I was expecting .But the clarity of view is 5 stars big visible text and the light of tank itself provides illumination, what a great idea .A must buy for any aquarium

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  11. Barthuc89

    Schönes unscheinbares Design, einfache Handhabung, Genauigkeit für ein aufgesetztes Thermometer ausreichend

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  12. Micky Maus

    👍

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  13. Graham Toon

    an easy to read and fit aquarium temperature display. Checked against another thermometer & it seems quite accurate. Happy with this purchase

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    capetsma Aquarium Thermometer Digital Fish Tank Thermometer Accurate Reptile Thermometer Temperature Gauge with Large LCD Screen
    capetsma Aquarium Thermometer Digital Fish Tank Thermometer Accurate Reptile Thermometer Temperature Gauge with Large LCD Screen

    $9.99

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