Editor's Choice - Our Favorite Marina Aquarium Thermometers

1. Marina Floating Thermometer with Suction Cup

User Ratings: 70 5

Marina 11201A1 First Impressions

"So I guess I needed them!"

This thermometer is spot on accurate. So much so that I purchased a second set of 6. Still a recommendation for me due to price and accuracy. Personally I do not mind the way it looks in my aquarium. The digital display is nice and small as well. A bit large for anything smaller than 5 gallons, but that's to be expected. This is my first 5 star review out of many many reviews on Amazon.

  • Marina Floating Thermometer with Suction Cup
  • Easy to read floating aquarium thermometer with suction cups
  • Includes a safety zone indicator appropriate for most tropical fish
  • Equipped with suction cups to attach to the side of your fish tank
  • Ensures your aquarium is at the proper temperature
  • Thermometer is 4.25 inches tall
  • Manufacture: Marina
  • Product Dimensions: 7 x 4 x 1 inches; 0.35 Ounces
  • Editor's Impressions Of The Marina 11201A1
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11201A1 Final Thoughts

"I like this."

A bit large for anything smaller than 5 gallons, but that's to be expected. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. The digital display itself is easy to read at a glance. They are within a degree or two of other thermometers I've checked to compare them. I am extremely pleased with this product. He acted aggressively towards it and so I ultimate ended up removing it due to that. This temperature read a perfect 32 degrees.

Overall Score
4.4


(8702 Points)

Peoples Choice - Other Highly Rated Marina Aquarium Thermometers

2. Marina Deluxe Floating Thermometer with Suction Cup

User Ratings: 69 7

Marina 11204 First Impressions

"THERE'S MORE!"

Was going to get a floater until I saw this magnetic one! 82 PER THERMOMETER with battery included. If the digital display starts to get dim, it's time for a new battery. And is easily hidden behind a plant. So far, they're all doing their job in my four tanks and I am quite content. I tested this in a cup crammed full of ice and some water. Sure enough the digital thermometer was way off by 6 degrees!

  • Marina Deluxe Floating Thermometer with Suction Cup
  • Easy-to-read floating thermometer
  • Includes a safety zone indicator
  • Equipped with suction cups
  • Ensures your aquarium is at a proper temperature
  • Temperature range of 30 to 120 degrees Fahrenheit
  • Manufacture: Marina
  • Product Dimensions: 0.5 x 3.8 x 4.3 inches; 0.18 Ounces
  • Editor's Impressions Of The Marina 11204
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11204 Final Thoughts

"The hotter, the faster."

I've checked it against two other thermometers that are accurate. Love it, it's easy to read and keeps an accurate temp. A bit large for anything smaller than 5 gallons, but that's to be expected. A battery can last you up to six months, I'd say, but expect more like three. I have to admit I had two reasons for buying six. However, Lucy at Zacro read this review and emailed me. A battery can last you up to six months, I'd say, but expect more like three.

Overall Score
4.4


(649 Points)

3. Marina Stainless Steel Thermometer

User Ratings: 51 11

Marina 11203A1 First Impressions

"6 tenths of a degree."

82 PER THERMOMETER with battery included. I have kept aquariums for about 45 years. And for the price you cant beat it. You can not swivle the thermometer to face a certain way. Have checked them against the glass thermometers and the accuracy is right on. I needed a solution that was not breakable and these do the trick! Was going to get a floater until I saw this magnetic one!

  • Marina Stainless Steel Thermometer
  • Easy-to-read stainless steel thermometer
  • Includes a safety zone indicator. Safety zone Indicator for Most Tropical fish
  • Ensures your aquarium is at a proper temperature. Protects your Fish from Unsafe Temperature
  • Hooks onto the side of your aquarium
  • 4.5 inches tall
  • Manufacture: Marina
  • Product Dimensions: 0.9 x 3.9 x 7 inches; 0.64 Ounces
  • Editor's Impressions Of The Marina 11203A1
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11203A1 Final Thoughts

"Currently maintains a 76."

All were Close enough for a fish tank and other uses. The lid is textured aluminum, and the suction cups don't stick to that. The suction cups work well anywhere I have placed it it has not Fallen. It works equally well on all of them. Still a recommendation for me due to price and accuracy. So the extra units will always come in handy. My only complaint is that they tend to be a one time use.

Overall Score
4.0


(251 Points)

4. Marina Floating Thermometer

User Ratings: 66 11

Marina 11200A1 First Impressions

"Versatile."

Have checked them against the glass thermometers and the accuracy is right on. 50 thermometers, reads much easier and no suction cup residue, also looks better. The units each had a battery in place and situated for immediate use. In this scenario it would probably get knocked loose a lot. One of my aquariums is glass, and the other two are plastic. So far, they're all doing their job in my four tanks and I am quite content. Then is started to give a low reading, and it is not reading the correct temperature.

  • Marina Floating Thermometer
  • Item Package Height: 19.812 Centimeters
  • Item Package Length: 1.778 Centimeters
  • Item Package Width: 10.922 Centimeters
  • Product Type: Pet Supplies
  • Manufacture: Marina
  • Product Dimensions: 0.4 x 3.7 x 4.2 inches; 0.64 Ounces
  • Editor's Impressions Of The Marina 11200A1
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11200A1 Final Thoughts

"Super easy."

Excellent working for our bearded dragon tank. These things are useful for a lot besides pet husbandry, too. I ordered a new one and it works GREAT! I bent it a little bit and when I put it back it was perfectly fine. I used these on a number of my aquariums that have discus fish in them. Have checked them against the glass thermometers and the accuracy is right on. So far, they're all doing their job in my four tanks and I am quite content.

Overall Score
4.2


(102 Points)

Honorable Mentions - More Top Selling Marina Aquarium Thermometers

5. Marina ThermoSensor In-Out Thermometer

User Ratings: 47 15

Marina 11196 First Impressions

"1 degree of each other."

Have checked them against the glass thermometers and the accuracy is right on. The non-working ones still provide 2 batteries each AND. I guess these units do not like saltwater. I have mine on my 60 gallon cube marine tank. It is about 6 inches in length and roughly an inch wide. This is my first 5 star review out of many many reviews on Amazon. You can use the thermometer with or without the plastic suction cup.

  • Marina ThermoSensor In-Out Thermometer
  • Provides both inside and outside aquarium temperature readings
  • Accurate, easy-to-read digital display
  • Can be attached anywhere on the aquarium
  • Velcro mount for easy installation; Battery included
  • Contains temperature probe
  • Manufacture: Marina
  • Product Dimensions: 0.75 x 3 x 1.5 inches; 1.44 Ounces
  • Batteries: 2 LR44 batteries required. (included)
  • Editor's Impressions Of The Marina 11196
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11196 Final Thoughts

"Close enough I reckon!"

So far, they're all doing their job in my four tanks and I am quite content. I removed the batteries of the units I wasn't using right away. So, in those cases, I find it easier to simply replace it. You can not swivle the thermometer to face a certain way. The temperature fluctuated a lot with it. I came here to give this product a positive review. I use a small flashlight if I don't want to brighten the area.

Overall Score
3.7


(66 Points)

6. Marina " Diameterorado", 66 to 88 F / 19 to 31 C

User Ratings: 57 15

Marina 11223 First Impressions

"Very accurate."

This company is taking the long term view of how to do business right. I needed a solution that was not breakable and these do the trick! The suction works for a month at a time- in pool and hot tub circulation. The plastic from the suction cup quickly turned from a clear to a milky white. Then is started to give a low reading, and it is not reading the correct temperature. I got root rot after light leaks and high water temps. Then is started to give a low reading, and it is not reading the correct temperature.

  • Marina " Diameterorado", 66 to 88 F / 19 to 31 C
  • Easy To Mount Thermometer For Glass Aquariums
  • Measures In Celsius And Fahrenheit
  • Temperature Range Of 66 To 88-Degree Fahrenheit And 19 To 31-Degree Celsius
  • Equipped With Adhesive Backing For Durable Hold
  • Measures 3-inch long
  • Manufacture: Marina
  • Product Dimensions: 0.3 x 3 x 7 inches; 0.32 Ounces
  • Editor's Impressions Of The Marina 11223
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11223 Final Thoughts

"That adds peace of mind."

I find that the temps are accurate, and this product gives added peace of mind. I ordered a new one and it works GREAT! Very accurate, have checked it with other thermometers as well. 89 I could buy Six Thermometers with Six included batteries. One being a very expensive digital. I've checked it against two other thermometers that are accurate. He was moving slow in the winter and we realized he needed a heater!

Overall Score
4.0


(47 Points)

7. Marina Aqua-Minder Programmable Digital Thermometer

User Ratings: 60 11

Marina 11190 First Impressions

"Sticks easy."

Good cheap accurate aquarium thermometer. I removed the batteries of the units I wasn't using right away. I ordered this guy and it was 6 degrees hotter than the digital! Love it, it's easy to read and keeps an accurate temp. 49 thermometer that is 100% accurate. It works equally well on all of them. The non-working ones still provide 2 batteries each AND.

  • Marina Aqua-Minder Programmable Digital Thermometer
  • Provides continuous monitoring of temperature
  • Six programmable English tasks
  • Measures 32 degrees Fahrenheit to 199 degrees Fahrenheit
  • Ideal for people with busy schedules
  • For better product understanding please refer to the back of the product
  • Manufacture: Marina
  • Product Dimensions: 0.9 x 4.9 x 8 inches; 3.2 Ounces
  • Editor's Impressions Of The Marina 11190
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11190 Final Thoughts

"Perhaps it's my fault."

2 deg, if it was 32, it would be a SOLID block of ice. I can't say which is the most accurate and don't really care. It is easy to use and install it'disappears' in your tank it is so unobtrusive. Very impressed, I have now had them in used for a month so far. However, Lucy at Zacro read this review and emailed me. I think the people who said the suction cup broke. The suction will never be the same.

Overall Score
4.0


(37 Points)

8. Marina Standing Thermometer, Fahrenheit and Celsius Aquarium Thermometer, 11202

User Ratings: 53 5

Marina 11202 First Impressions

"So far so good."

All were Close enough for a fish tank and other uses. So this is the extreme end of the high temperature range. The only reason I didn't give this 5 stars is because my betta fish didn't like it. Excellent working for our bearded dragon tank. It is about 6 inches in length and roughly an inch wide. One of my aquariums is glass, and the other two are plastic. I don't think i'll ever be able to trust a digital thermometer again.

  • Marina Standing Thermometer, Fahrenheit and Celsius Aquarium Thermometer, 11202
  • Fish tank thermometer designed to sink to the bottom
  • Remains standing in a vertical position
  • Accurate and easy-to-read thermometer
  • Provides readings in Fahrenheit and Celsius
  • Includes safety zone indicator appropriate for most tropical fish
  • Manufacture: Marina
  • Product Dimensions: 0.5 x 3.8 x 7 inches; 0.64 Ounces
  • Editor's Impressions Of The Marina 11202
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11202 Final Thoughts

"Subtracted from the tank."

This doesn't bother me as it ws so cheap. I have this thermometer on all my tanks. The suction works for a month at a time- in pool and hot tub circulation. Works well in my betta tank, but provide a couple hours for it to read temp changes. This doesn't bother me as it ws so cheap. And is easily hidden behind a plant. And I just really started to doubt it.

Overall Score
4.0


(32 Points)

9. Veanic 4-Pack Digital Aquarium Fish Tank Thermometer Terrarium Water Temperature Meter Gauge with Wa...

Veanic First Impressions

"Fish are doing very well."

This is my first 5 star review out of many many reviews on Amazon. As you can see from my photos, in both°F and°C, all six are within. Only thing I don't love is how long the cord is. He acted aggressively towards it and so I ultimate ended up removing it due to that. 49 thermometer that is 100% accurate. My only complaint is that they tend to be a one time use. I used to have a large hang in the side tank that you couldn't miss.

  • Veanic 4-Pack Digital Aquarium Fish Tank Thermometer Terrarium Water Temperature Meter Gauge with Water-Resistant Sensor Probe for Reptile Turtle Incubators
  • The digital aquarium thermometer helps you accurately monitor the temperature of your aquatic habitat; suitable for freshwater or marine aquariums.
  • The digital thermometer combins a water-resistant sensor probe, you can accurately and quickly monitor the temperature of your terrarium.
  • This digital thermometer with 3 ft insulated wire, can switch between celsius(℃) and fahrenheit (℉) .
  • Temperature measuring range: -58℉-158℉(-10℃-70℃ ); Temperature measurement accuracy: ±2℉(±1℃).
  • Perfect to use in brooders, reptile tank, hamster cages,aquarium, fish tank, pet keeping, gardening and other places where you want.
  • Manufacture: Veanic
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The Veanic
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Veanic Final Thoughts

"Highly Recommended."

I don't think i'll ever be able to trust a digital thermometer again. If the digital display starts to get dim, it's time for a new battery. I got root rot after light leaks and high water temps. I find that the temps are accurate, and this product gives added peace of mind. I guess these units do not like saltwater. I bought these for my dwc reservoirs. I recommend gluing the suction cups in place where needed for long-term installation.

Overall Score
5.0


(9 Points)

10. SHARPTEMP-V Veterinary Thermometer. Fast, Accurate Temperatures in 8-10 Sec. Beeps When Ready. Stain...

User Ratings: 74 7

SHARPTEMP-V First Impressions

"Great product!"

For something so cheap, they are working remarkably well. They are within a degree or two of other thermometers I've checked to compare them. And is easily hidden behind a plant. When and if we run out of this batch, I'll instantly order another batch. The units each had a battery in place and situated for immediate use. Who knows, whatever it was, it was revolting! The temperature fluctuated a lot with it.

  • SHARPTEMP-V Veterinary Thermometer. Fast, Accurate Temperatures in 8-10 Sec. Beeps When Ready. Stainless-Steel Probe w/Rounded Tip. Safe for All Farm Animals & Pets.
  • DIGITAL VETERINARY THERMOMETER: The Sharptemp-V Veterinary Thermometer is a versatile digital thermometer built rugged enough for heavy- duty use on-farm, in the stable, at the veterinary clinic and at home. The 4-inch probe length meet the needs of all types of large livestock, horses, and companion animals.
  • FAST & ACCURATE: Fast, accurate temperature readings in 8 to 10 seconds depending on conditions. Measures from 90 °F to 107°F and is accurate to +/- 0.1 F°. The large easy-read 3/8”-high LCD blinks while stabilizing then emits an audible beep when an accurate temperature is reached. Auto shut-off after 9 minutes. This Veterinary Thermometer reads Fahrenheit ( °F) only.
  • VERSATILE & SAFE: Sharptemp Veterinary Thermometer is for oral or rectal use in animals. Stainless steel probe is 3/16” (5mm) diameter with blunt end for safe insertion. Normal temperatures for common pets and farm animals are printed on the back for convenient reference. The tough durable plastic body and surgical-grade stainless-steel probe surfaces are designed for easy cleaning and disinfection.
  • BUILT TOUGH: Tough, durable, plastic thermometer BODY (without probe) measures 4” x 1-1/8” x 5/8” and fits ergonomically in hand. The woven nylon lanyard loops comfortably over wrist. The hard-plastic friction-fit probe cover prevents damage and slides on and off with ease. Includes one user- replaceable LR44 hearing aid battery and a sturdy, protective polyethylene storage case.
  • IN THE BOX: One Sharptemp digital veterinary thermometer with 4-inch probe, probe cover, battery, instructions and sturdy plastic storage case. CE- approved. One-year warranty. Click “ADD to CART” and start measuring animal temperatures fast and accurately with the Sharptemp Veterinary Thermometer. Your satisfaction is 100% guaranteed!
  • Manufacture: Contran Corporation
  • Editor's Impressions Of The SHARPTEMP-V
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SHARPTEMP-V Final Thoughts

"6 tenths of a degree."

The plastic from the suction cup quickly turned from a clear to a milky white. This is my first 5 star review out of many many reviews on Amazon. Excellent working for our bearded dragon tank. I got root rot after light leaks and high water temps. These are the perfect size to be easily read while not being obtrusive. My 50+ eyes cannot read a regular tank thermometer without squinting. It started working as soon as I put it in and has been working ever since.

Overall Score
4.5


(23 Points)

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