AQUANEAT Aquarium Thermometer, Fish Tank Thermometer, Digital Temperature Test, with Large LCD Display (1 Pack)
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Availability:
In Stock.
Arrives
Wednesday, Jul 8
Size: 1 Pack
Features
- Wide application: Ideal for use in water or high moisture environment like aquarium terrarium, or vivarium; suitable for different water types such as fresh water, tap water, salty water, marine water and etc.
- Easy to read: Comes with a large LCD display that is easy to read clearly. Thermometer size: 2.3" (L) x 1.5" (W)
- Easy to setup: Submerge probe with suction cup can easily be set in water (Submerge probe only, do not submerge thermometer in water) ; Press ''PWR'' for 3 seconds to power off
- Free Battery: 1 PC LR44 button cell battery for each thermometer.
- Wide temperature range: Measure -58F to +158F (-50C to +70C) with accuracy +/- 1C
Brand: AQUANEAT
Special Feature: High Accuracy
Color: black
Age Range (Description): Adult
Included Components: No
Outer Material: Plastic
Display Type: Digital
Unit Count: 1.0 Count
Power Source: Battery Powered
Model Name: A045
Additional Features: High Accuracy
Display Type: Digital
Power Source: Battery Powered
Number of Batteries: 1 LR44 batteries required.
Upper Temperature Range: 70 Degrees Celsius
Response Time: 3000 Milliseconds
Reusability: Reusable
Immersion Depth: 2 Inches
Indoor Outdoor Usage: Indoor
Outer Material: Plastic
Color: black
Style Name: Classic
Brand Name: AQUANEAT
Age Range Description: Adult
Included Components: No
Model Name: A045
Model: DT-A045^
Manufacturer: AQUANEAT
Part Number: A045^
Unit Count: 1.0 Count
Item Length: 2.3 Inches
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jul 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1 Pack
Honestly, I really love this thermometer because the price is extremely cheap but it competes very well with more expensive aquarium thermometers. When I was looking for one for my fish tank, I wanted something simple, clean-looking, and easy to place on the glass, and this one met all my expectations. Installation is very easy, and I really like that it has two ways to measure temperature and switching between them is simple. The design is minimal but effective, and it does exactly what it’s supposed to do. For the price, I honestly don’t think you can go wrong. I highly recommend it because it’s one of those purchases you won’t regret.
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Reviewed in the United States on February 15, 2026 by Gerardo
Size: 6 Packs
I am not sure what temperature the water is. Who am I William Thomson? However, if these things are accurate, my fish are super happy. As it is, the water is neither boiling nor rock solid. Also, the fish are still alive. So, I think it is pretty accurate. Also, I set my heater to 76, and this thing is reading pretty much that. I could not get the suction cups to stick on a couple of my tanks, but I have one that has been stuck for months! (from a previous order). THESE ARE NOT FOR RECTAL TEMPS. I don't know how many times I have to say that. Probably just once, but we shall see.
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Reviewed in the United States on May 29, 2022 by Questionably nuts.
Size: 1 Pack
I had to turn it on and off a few times before it started to work accurately. It was also on in the shipping box. It was reading crazy temps at first but now it is working well. I also put it too close to the aquarium lights at first and it was reading super high, but I moved it to the middle of the tank and it now seems accurate. I did leave it in the tank for about an hour before it really got to an accurate reading. I really Like it now that it is working properly as the suction cups stay mounted and the numbers are very legible. If you want to switch it from tank to tank, I recommend turning it off then turning it back on when it’s in the new tank so that it reads accurately within thirty seconds rather than taking a while to adjust. My only concern is that people said it has stopped working after a few months. I’ve only had it in for like three days so we will see what happens.
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Reviewed in the United States on June 23, 2024 by Ashlyn
Size: 6 Packs
I used to keep large (90 gal and 75 gal) Cichlid tanks 5 yrs ago then left the hobby. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. Unless you are keeping coldwater fish such as goldfish that can be satisfied and healthy at room temp water, you will still need to heat these little Nano tanks hence you will need to know what the water temp is. 5 or more years ago, the methods used by aquarists to keep track of water temps were primitive by today's standards. Sure....they had digital technology back then but it was pricey and much cheaper to buy those funky 'stick on' thermometers which were often inaccurate to say the least. After reading reviews and shopping around I went with the AQUANEAT Aquarium Digital Thermometer and glad I did. As I needed at least three right off the bat I decided to take advantage of price discounts offered for buying in quantity. For $16.89 I could buy Six Thermometers with Six included batteries. Nice. I have to admit I had two reasons for buying six. Anticipating more aquariums down the road AND anticipating that maybe the quality might be so-so and I'd have a dud or two right away and need a replacement right away. Much to my pleasant surprise....I opened the first three....popped them into the aquariums and they have been operating flawlessly for the last 3 months and accurate as well. I am extremely pleased with this product. It is easy to use and install it 'disappears' in your tank it is so unobtrusive. The digital display is nice and small as well. With a little suction cup it will stick to the side of your tank and it will also 'disappear' as it is also highly unobtrusive and barely noticeable. The digital display itself is easy to read at a glance. You dont HAVE to stick the display onto your tank. The wiring provided is long enough where I actually have located one of my displays in a remote location from the tank so it's not even 'on' the tank. Now I'm not talking six feet or anything like that but this particular tank is on an office desk and I've situated the digital display where it can't be seen on my desk yet I can pick it up and look at it anytime I want. Nice. So far...I must say....SIX Digital Thermometers with SIX batteries INCLUDED working so well ...at least in the first 3 months of use....all for $16.89 plus free shipping ....doing the math...I paid $2.82 PER THERMOMETER with battery included. C'mon...you can't beat that with a stick!AQUANEAT Aquarium Digital Thermometer Fish Tank Water Terrarium Reptile FREE Extra Batteries (6 Pack)
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Reviewed in the United States on July 8, 2018 by Bobby Magic
Size: 1 Pack
I purchased the AQUANEAT Digital Aquarium Thermometer on December 11, 2021, and it's served me well for over three years! I primarily used it in my bearded dragon's 20 and 40-gallon tanks to accurately monitor the temperature of his basking hammock. It consistently provided reliable readings, which was crucial for ensuring my reptile's health. The unit came with two batteries, and I was impressed by their longevity. Both batteries lasted until February 27, 2025, when the thermometer finally stopped working. That's a solid lifespan for a budget-friendly device! The large LCD display is clear and easy to read, making quick temperature checks a breeze. It did its job perfectly. The only minor downside is that the suction cup was essentially useless and wouldn't adhere to the glass. However, considering the excellent performance and incredibly affordable price, I can easily overlook this. I simply placed the unit where it was easily visible. Overall, I'm very satisfied with the AQUANEAT thermometer. It's a great product at a great price, and it served its purpose admirably for a long time. I would definitely recommend it to anyone needing a reliable and inexpensive temperature monitor for their aquarium or reptile tank.
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Reviewed in the United States on February 27, 2025 by ES
Size: 1 Pack
If I could give this zero stars, I would. It stopped working after 2 days and the readings on it were vastly different multiple other thermometers. This item was compared to 3 different thermometers and it was always off by 3-4+ degrees from all the others that were within .3 of each other.
Reviewed in the United States on March 26, 2026 by Tom Andreski
Size: 1 Pack
This works great in reading my 65 gallon tank's temp. Display is great!
Reviewed in the United States on February 27, 2026 by vacadoug