Editor's Choice - Our Favorite HEEPDD Aquarium Thermometers

1. HEEPDD Reptile Thermometer Hygrometer, Mini Round Shape Dual Dial Thermometer and Humidity Gauge for...

User Ratings: 41 34

HEEPDD First Impressions

"LOVE these thermometers."

I have kept aquariums for about 45 years. The suction works for a month at a time- in pool and hot tub circulation. I used to have a large hang in the side tank that you couldn't miss. Ambient room temperature measures 72. Now if it falls into a sink full of water, it's not a problem. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. I used these on a number of my aquariums that have discus fish in them.

  • HEEPDD Reptile Thermometer Hygrometer, Mini Round Shape Dual Dial Thermometer and Humidity Gauge for Reptile Tank Lizard Tortoise Spider Chameleon Pet Rearing Box
  • 2 in 1 Design---Monitoring of temperature and humidity is essential in providing any reptile species with the correct environment. Adopt the principle of physical measurement, no maintenance needed, and no battery required.
  • Easy to Read---Large dual round dial with accuracy scales, easy to read. Temperature Measuring Range: -30-50°C, Humidity Measuring Range: 0-100%RH. Use different color coded segments for easy reading, blue means cold (humid), green means moderate, red means hot (dry).
  • Compact and Lightweight---The thermometer can be suspended level or placed on the use, can be displayed anywhere in the reptile habitat without getting in the way of your pal’s view.
  • Applicable Scenes---Widely used for lizard, tortoise, spider, chameleon in vivariums, hatchers, brooders, propagators, etc. Also suitable for pet, warehouse, hospital, laboratory, air-conditioned room, etc.
  • Satisfaction Guarantee---We greatly value our customers and want you to be completely satisfied with your purchase. If you aren't happy with your shopping experience or product, we urge you to contact us so we can resolve the issue!
  • Manufacture: HEEPDD
  • Product Dimensions: 6.1 x 2.95 x 0.59 inches; 2.12 Ounces
  • Editor's Impressions Of The HEEPDD
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

HEEPDD Final Thoughts

"I like this."

One extra battery came with each unit. I was using one of those ubiquitous cheap digital thermometers on Amazon. For something so cheap, they are working remarkably well. Then is started to give a low reading, and it is not reading the correct temperature. These digital thermometers are great and there is no guesswork involved. This little wonder allows me to see at a glance that everything is as it should be. So, in those cases, I find it easier to simply replace it.

Overall Score
3.0


(11 Points)

2. Amer Thermal Instruments Liquid Crystal Vertical Aquarium Thermometer, Small

User Ratings: 73 7

Amer Thermal Instruments BC002021 First Impressions

"Holds a steady 1."

Then is started to give a low reading, and it is not reading the correct temperature. The digital display itself is easy to read at a glance. 6 in a pack, extra batteries, easy set up, great price. I've checked it against two other thermometers that are accurate. One of my aquariums is glass, and the other two are plastic. Place it on your aquarium and you are good to go. My poor fish was in 86 degrees water for a month.

  • Amer Thermal Instruments Liquid Crystal Vertical Aquarium Thermometer, Small
  • Liquid Crystal Vertical Aquarium Thermometer. Miscellaneous Aquarium
  • Manufacturer: AMERICAN THERMAL
  • Manufacturer part number: A-1003
  • Manufacture: Unique Cell Distributors LLC
  • Product Dimensions: 4 x 0.5 x 7 inches; 0.08 Ounces
  • Editor's Impressions Of The Amer Thermal Instruments BC002021
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Amer Thermal Instruments BC002021 Final Thoughts

"Overall a great buy."

And is easily hidden behind a plant. I came here to give this product a positive review. At least in the first 3 months of use. Excellent working for our bearded dragon tank. The digital display itself is easy to read at a glance. Simple fix, you adjust the thermometer within the suction cup and VIOLA! So much so that I purchased a second set of 6.

Overall Score
4.4


(69 Points)

3. SUKRAGRAHA Traditional Stick-on Aquarium Thermometers Temperature Strip Celsius Fahrenheit Display 1...

User Ratings: 72 5

SUKRAGRAHA First Impressions

"Love this product!"

This temperature read a perfect 32 degrees. I got root rot after light leaks and high water temps. I'm pretty sure those reviewers have acrylic tanks. These things are useful for a lot besides pet husbandry, too. I have mine on my 60 gallon cube marine tank. The display can be set to Fahrenheit or Celsius. I read some of the 1 star reviews and most of them are not about the product.

  • SUKRAGRAHA Traditional Stick-on Aquarium Thermometers Temperature Strip Celsius Fahrenheit Display 10 pc (18~34C Not for Fever)
  • 10 pcs Set
  • Dimensions: 5.12 x 0.71 inch / 13.0 x 1.8 cm
  • Measuring range: 18~34 Degree C (64~93 Degree F)
  • Adhesive by the back, just peel off the tape and attach to outside /surface of aquarium
  • Different temperature with different color
  • Manufacture: SUKRAGRAHA
  • Editor's Impressions Of The SUKRAGRAHA
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SUKRAGRAHA Final Thoughts

"Great price."

It is my opinion that everyone should have these that are in the Aquarium Hobby. The digital display itself is easy to read at a glance. 6 in a pack, extra batteries, easy set up, great price. I removed the batteries of the units I wasn't using right away. It is always where yo last put it and it is very easy to see and read. I bent it a little bit and when I put it back it was perfectly fine. 6 inch long Bala Sharks that are known to be very unruly and boisterous.

Overall Score
4.5


(325 Points)

4. LXSZRPH Reptile Thermometer Hygrometer HD LCD Reptile Tank Digital Thermometer with Hook Temperature...

User Ratings: 50 50

LXSZRPH First Impressions

"Perfect customer service."

Now if it falls into a sink full of water, it's not a problem. The non-working ones still provide 2 batteries each AND. The temperature fluctuated a lot with it. I came here to give this product a positive review. Was going to get a floater until I saw this magnetic one! I read some of the 1 star reviews and most of them are not about the product. When and if we run out of this batch, I'll instantly order another batch.

  • LXSZRPH Reptile Thermometer Hygrometer HD LCD Reptile Tank Digital Thermometer with Hook Temperature Humidity Meter Gauge for Reptile Tanks, Terrariums, Vivarium
  • 100% Brand New and High-Quality Reptile Tank Thermometer Hygrometer: Precise supervision of the temperature and air humidity in terrariums, vivariums and reptile tanks.
  • Stylish Design: Stylish looking digital vivarum thermometer with hook and loop for easy to install to any reptile tanks or terrariums. Comes with a battery so you can use the thermometer immediately.
  • Fantastic Value: This accurate reptile thermometer and hygrometer allows you to monitor the temperature and humidity in the reptile tanks at all times to makesure your beloved reptiles are in perfect health.
  • Fahrenheit Celsius Convertible: Temperature can be display in Fahrenheit or Celsius by press the C/F hole on the back of the item with a paper clip.
  • Quality Guaranteed: Our carefully sourced range of thermometer hygrometers are manufactured to the highest of standards our customers expect. And provide 365 days warranty, in case of any quality problems, please feel free to contact us by email, we will give you a satisfactory solution.
  • Manufacture: Zhongshan Cangda Technology Co., Ltd.
  • Product Dimensions: 2.08 x 0.67 x 1.3 inches; 0.92 Ounces
  • Batteries: 2 LR44 batteries required. (included)
  • Editor's Impressions Of The LXSZRPH
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

LXSZRPH Final Thoughts

"Love it for my turtles."

Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK. This is my first 5 star review out of many many reviews on Amazon. This is how you calibrate a thermometer. So the extra units will always come in handy. A bit large for anything smaller than 5 gallons, but that's to be expected. It will make you wonder why nobody thought of it before. When I set up my newest tank I will be getting another one of these.

Overall Score
3.0


(2 Points)

5. Zoo Med Digital Thermometer

User Ratings: 71 5

Zoo Med TH-24 First Impressions

"Sticks easy."

When I set up my newest tank I will be getting another one of these. This is my first 5 star review out of many many reviews on Amazon. I used these to raise chicks, and in my parrot cages. I am extremely pleased with this product. I used to have a large hang in the side tank that you couldn't miss. Now if it falls into a sink full of water, it's not a problem. This is my first 5 star review out of many many reviews on Amazon.

  • Zoo Med Digital Thermometer
  • External sensor can go in water
  • Fahrenheit and Celsius
  • LCD readout
  • Pack of 3
  • Manufacture: Zoo Med
  • Product Dimensions: 4 x 1 x 5.3 inches; 0.63 Ounces
  • Editor's Impressions Of The Zoo Med TH-24
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Zoo Med TH-24 Final Thoughts

"They are within 0."

SIX Digital Thermometers with SIX batteries INCLUDED working so well. I have always had trouble reading the color temp. You can use the thermometer with or without the plastic suction cup. Now that the chickens are grown, I have one out in the coop as well. SIX Digital Thermometers with SIX batteries INCLUDED working so well. This thermometer is spot on accurate. I got the second one as a bonus that I'm now using in my old tank.

Overall Score
4.3


(22 Points)

6. Coralife 00232 Digital Thermometer

User Ratings: 50 10

Coralife 100105032 First Impressions

"Great price."

I used to have a large hang in the side tank that you couldn't miss. We are using them to measure various temperatures inside and outside of a motorhome. The non-working ones still provide 2 batteries each AND. I used these on a number of my aquariums that have discus fish in them. I've checked it against two other thermometers that are accurate. Excellent working for our bearded dragon tank. If the digital display starts to get dim, it's time for a new battery.

  • Coralife 00232 Digital Thermometer
  • Attaches to aquarium via small suction cup
  • 3 foot long temperature probe for large size aquariums
  • Battery included
  • Ideal for aquariums and terrariums
  • Readings to 0.1-degrees Fahrenheit or Celsius
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 6.3 x 0.4 x 1.9 inches; 1.6 Ounces
  • Editor's Impressions Of The Coralife 100105032
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Coralife 100105032 Final Thoughts

"I like these."

I removed the batteries of the units I wasn't using right away. Bought the two pack of thermometers. Good cheap accurate aquarium thermometer. The plastic from the suction cup quickly turned from a clear to a milky white. It is always where yo last put it and it is very easy to see and read. The non-working ones still provide 2 batteries each AND. All are pretty accurate within one degree as claimed.

Overall Score
3.8


(230 Points)

7. Smartcoco Digital LCD Screen Sensor Aquarium Thermometer Wired Aquarium Fish Tank Reptile Box Temp M...

User Ratings: 54 26

Smartcoco First Impressions

"Never had any problems."

It will make you wonder why nobody thought of it before. Very accurate, have checked it with other thermometers as well. So much so that I purchased a second set of 6. 6 in a pack, extra batteries, easy set up, great price. I guess these units do not like saltwater. All were Close enough for a fish tank and other uses. They are within a degree or two of other thermometers I've checked to compare them.

  • Smartcoco Digital LCD Screen Sensor Aquarium Thermometer Wired Aquarium Fish Tank Reptile Box Temp Meter Electronic Temperature Measurement
  • Stylish and exquisite digital thermometer for Aquarium
  • LCD screen & High quality suction base & long sensor cable and switch of °C / °F
  • Size: 2.3 x 1.5 x 0.6 in / 5.8×3.7×1.6 cm
  • Suitable for fish tank, reptile box, diving pet box and more
  • Package included: 1* Aquarium Thermometer
  • Manufacture: Smartcoco
  • Editor's Impressions Of The Smartcoco
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Smartcoco Final Thoughts

"Suction cups are okay."

As you can see from my photos, in both°F and°C, all six are within. We are using them to measure various temperatures inside and outside of a motorhome. Simple fix, you adjust the thermometer within the suction cup and VIOLA! I find that the temps are accurate, and this product gives added peace of mind. For something so cheap, they are working remarkably well. I've checked it against two other thermometers that are accurate. Instead she sent a new package of two, both of which work.

Overall Score
3.8


(6 Points)

8. Penn-Plax Standing Thermometer

User Ratings: 49

Penn-Plax TS First Impressions

"Which is good."

So the extra units will always come in handy. The suction works for a month at a time- in pool and hot tub circulation. Now if it falls into a sink full of water, it's not a problem. It is large enough to see without being obtrusive. Place it on your aquarium and you are good to go. And I just really started to doubt it. I had my heater set at 73-degrees and the thermometers showed 74.

  • Penn-Plax Standing Thermometer
  • Standing Style Glass Aquarium Thermometer
  • Accurate Easy To Read
  • This Product Is Made In China
  • Package Dimensions: 0.6" L X 3.1" W X 7.4" H
  • Manufacture: Penn Plax, INC.
  • Product Dimensions: 0.6 x 3.1 x 7.4 inches; 0.8 Ounces
  • Editor's Impressions Of The Penn-Plax TS
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Penn-Plax TS Final Thoughts

"Close enough I reckon!"

I recommend gluing the suction cups in place where needed for long-term installation. A bit large for anything smaller than 5 gallons, but that's to be expected. I use a small flashlight if I don't want to brighten the area. My poor fish was in 86 degrees water for a month. The only reason I didn't give this 5 stars is because my betta fish didn't like it. So this is the extreme end of the high temperature range. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK.

Overall Score
4.3


(13 Points)

9. Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with LCD Display Fahrenheit/Celsius(...

User Ratings: 67 3

AikTryee First Impressions

"2 deg of 32."

It is large enough to see without being obtrusive. So much so that I purchased a second set of 6. It started working as soon as I put it in and has been working ever since. I used these to raise chicks, and in my parrot cages. Was going to get a floater until I saw this magnetic one! Place it on your aquarium and you are good to go. We are using them to measure various temperatures inside and outside of a motorhome.

  • Aquarium Thermometer, Fish Tank Thermometer, Water Thermometer with LCD Display Fahrenheit/Celsius(℉/℃) for Vehicle Reptile Terrarium Fish Tank Refrigerator by AikTryee
  • 【PRODUCT MATERIAL】Aquarium Thermometer uses a high-precision stainless steel sensor probe to measure the water temperature of the aquarium. The main unit uses a professional LCD display to solve the problem of not knowing the temperature of the fish tank, thus providing a healthy and comfortable water environment for all kinds of fish.
  • 【WIDE TEMPERATURE TEST】Fish Tank Thermometer Temperature Range -58 ℉ ~ +500℉; Temperature measurement accuracy: ±1℉; It can be used in temperature sensing of many types of liquids, making your temperature measurement so simple.
  • 【LONG BATTERY LIFE】Water Thermometer Powered by Two LR44 Button Cell (Included), Battery Working Time up to 8 Months.
  • 【LARGE SCREEN DISPLAY】Digital Aquarium Thermometer with a Large Screen 1.6 inch LCD Display, Easy to Read Temperature for Children or Older People, Real-time monitoring of changes in water temperature.
  • 【Package Includes】Aquarium Thermometer 1 x Digital Aquarium Thermometer, 2 x Suction cup mounts, 1 x User manual, LR44 battery included.
  • Manufacture: AikTryee
  • Product Dimensions: 2.28 x 1.4 x 0.47 inches; 1.31 Ounces
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The AikTryee
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AikTryee Final Thoughts

"Disappointed."

Very impressed, I have now had them in used for a month so far. They reviewed the packaging or shipping by saying it arrived broken. The suction works for a month at a time- in pool and hot tub circulation. 6 inch long Bala Sharks that are known to be very unruly and boisterous. The plastic from the suction cup quickly turned from a clear to a milky white. The lid is textured aluminum, and the suction cups don't stick to that. This temperature read a perfect 32 degrees.

Overall Score
4.4


(79 Points)

10. Lifestyler New Glass Meter Aquarium Fish Tank Water Temperature Thermometer Suction Cup

Lifestyler First Impressions

"Never had any problems."

This company is taking the long term view of how to do business right. So versatile, I can read the temperatures literally anywhere. The display can be set to Fahrenheit or Celsius. 6 inch long Bala Sharks that are known to be very unruly and boisterous. I bought these for my dwc reservoirs. Works well in my betta tank, but provide a couple hours for it to read temp changes. I needed a solution that was not breakable and these do the trick!

  • Lifestyler New Glass Meter Aquarium Fish Tank Water Temperature Thermometer Suction Cup
  • Clearly readable scale tells you to understand the temperature at two degrees Celsius and Fahrenheit.
  • Since this thermometer is in the tank, it reads the water temperature exactly as it is.
  • It is floating and fixed by the attached sucker.
  • Easy to install, simply place it in the tank and connect the suction cup to the inside of the tank for easy reading.
  • Test range: 0 ~ 40 ℃
  • Manufacture: Lifestyler
  • Item Weight: 1.76 Ounces
  • Editor's Impressions Of The Lifestyler
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Lifestyler Final Thoughts

"Appears to be accurate."

I think the people who said the suction cup broke. When I set up my newest tank I will be getting another one of these. And is easily hidden behind a plant. The display can be set to Fahrenheit or Celsius. This doesn't bother me as it ws so cheap. One extra battery came with each unit. You can glue, tape or simply cover the cords in the tank to keep them discreet.

Overall Score
5.0


(1 Points)

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