Best Aquarium Thermometers 2018 – Reliability and Durability

Best aquarium thermometerMost people would underestimate the use and function of aquarium thermometer – mostly because they don’t really understand its basic usage. If you have a fish tank, you’d know that the water temperature plays a crucial role in the fish and also plants life. If it gets too high, they may die. But if it gets too low, they may die too – you need to have the right temperature to make sure that they will live.

That’s why we need a thermometer for the aquarium. If you have one (despite the variants and the different usages), you can be sure that you have maintained the right temperature. For this matter, you can rest assured that your fish (and the plants) will live happily ever after inside the cozy tank.

If you’re looking for an excellent device to control your aquarium temperature, you on the right page. So, what are the candidates for these best water thermometers for your tank?

The Best Most Accurate Fish Tank Thermometers

We have reviews the most thermometer that’s reliable, durable, and accurate that you can found on this page.

1. Digital LCD Zacro Fish Tank ThermometerZacro LCD Digital Thermometer

If you are looking for an inexpensive aquarium thermometer that can monitor the water temperature continuously, this submerge probe type of thermometer should be able to meet your requirements. However, you need to submerge the probe only into the water, not the entire thermometer itself. This kind of thermometer is believed to be more accurate because of the direct reading and contact to the water – at least when compared to the outside temperature, you can be sure that this one has a more accurate result.

Despite the seemingly simple design, this water thermometer is pretty handy. The suction cup is quite strong and solid, so you won’t have to worry that it will be easy coming off. This thermometer also comes with a bright LCD with easy reading features, also compact size. The thermometer is running with the battery, which can be easily changed.

What we liked

  • Easy to read and you won’t have any problem tweaking with it
  • The thermometer can be turned off if you don’t read it but it is still running on checking the water temperature
  • Feels solid and sturdy, and it doesn’t feel flimsy at all

What we didn’t like

  • After working perfectly, the temperature is either decreasing or increasing, creating a confusion
  • Some users say that they can’t turn it off, despite their attempts after reading the manual.
  • You will need to open the case and take off the battery to restart the thermometer

2. Sukragraha Stick on Traditional Temperature Thermometer

SUKRAGRAHA Thermometer StripThis is another aquarium thermometer that can really make your day – you will have to purchase it in a pack, containing 10 items. It’s a really good deal, really, considering that you will save a lot of money for the use of this unique stick on thermometer.

A lot of people are skeptical about this thermometer, stating that it isn’t as accurate as the submerged one. However, you need to remember that each product depends on the quality of the making as well as the manufacturer. If it comes from the reliable manufacturer with the credible working process, then you won’t have to worry – you will definitely get the best product only. This fish tank thermometer will provide accurate information with simple use. The back side comes with adhesive. You only need to peel it off and then directly attach it to the surface of the tank on the outside. There will be a different color output for different temperature.

What we liked

  • Traditional stick-on thermometer – Easily sticks to the surface, and it has provided a great reading result – which is quite accurate according to most users
  • Comes with white numbers which make it easy to read than the previous products with only black numbers

What we didn’t like

  • This one easily crinkles
  • It would be nice if the company can make the additional lights so the thermometer can be easily read when it is dark
  • The lowest temperature reading is only 64 degrees. It would be better if it can go lower

3. SunGrow LCD Digital Thermometer

SunGrow LCD Digital ThermometerWhen compared to the other thermometers, SunGrow is cheaper. But, this digital thermometer will prove that it is super solid and functional – you won’t have to worry about any performance issue or whatsoever. With this fish tank thermometer, you can be sure that you will deliver the perfect surroundings and water temperature for your fish.

SunGrow digital water thermometer is able to deliver an accurate reading. With the nice display screen that will provide you with the needed information, you can be sure that you will create a perfect environment for the fish and the plants – after all, you want them to survive and ‘feel at home’, right?

What we liked

  • Easy to use
  • The combination of Fahrenheit and Celsius reading is one of the things to like about this device

What we didn’t like

  • The display screen doesn’t come with backlight feature so it is difficult to read in the dark

4. American Thermal – Horizontal Thermometer

horizontal fish tank thermometerThis is another handy and useful aquarium thermometer that you can use outside the tank. It simply comes with the stick on a mechanism so you won’t need to install anything or tweak any of the devices. The entire system may look simple but you’d be surprised about how accurate the information is. It has all the nice features you can expect from American Thermal thermometer – it is easy for views and read, it is pretty accurate, it can be attached easily, and it comes with a horizontal design, which makes it quite interesting and unique. Most users claim that they mostly like the easy use where they only need to peel the tape and stick it anywhere outside the fish tank.

What we liked

  • Easy reading and the attractive display is one of the things to like about this device
  • Managing and operating the thermometer is pretty simple and straightforward
  • The horizontal design which makes it unique

What we didn’t like

  • There is a possibility that the adhesive will come off when you peel the tape
  • Needs a while to provide an accurate reading. According to some reviews and experience, you will need to give it a day or around 48 hours until the thermometer can provide a truly accurate result

5. Risepro LCD Digital Thermometer with 2 Packs Offer

RISEPRO saltwater thermometerWhereas most thermometers are sold as a single unit, this one is sold in a pair. It means with such a price, you can get yourself 2 thermometers! Isn’t it a good offer? Another thing to like about this thermometer is the easy adjustment and setup. You don’t have to be a rocket scientist to operate this aquarium thermometer. Once you can set up everything, you can immediately place the probe inside the water and the main display device on the tank. It’s a fuss-free implementation without no hassle at all.

According to the company, this device is accurate and it is able to cover a wide range of area, from -58.0 degrees of Fahrenheit to 158.0 (or around -50.0 degrees of Celsius to 70.0). Risepro LCD digital thermometer comes with both Fahrenheit and Celsius setting, so you can easily switch between the two. What if you have a saltwater tank? Or you probably have the freshwater one? No need to worry, this device can be used for all kinds of water types, including tap water. If you have reptiles too, you can use it to monitor their living temperature. Feel free to use it for the turtles, snakes, lizards, and others.

What we liked

  • The quality and making is pretty good and it is also solid
  • The operation is fairly easy and effortless without too much hassle in the setting
  • Easy switch between degree Celsius and Fahrenheit
  • Suitable for saltwater tank

What we didn’t like

  • The thermometer doesn’t have any backlit feature or illumination system, which makes it hard to read at night
  • The suction cup WILL definitely lose its ability to stick to the inside part of the tank

One Last Thing

It is up to you to choose which one perfect for your tank. These are the candidates of the best products so you can always choose one. If you’re looking for the best thermometer for your tank these could be a great choice for you.


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