Editor's Choice - Our Favorite Lifegard Aquatics Aquarium Thermometers

1. Lifegard Aquatics Full-View 5 Gallon Aquarium R800204 with LED Light Heater Thermometer, Net & Built...

User Ratings: 46 24

Lifegard Aquatics R800204 First Impressions

"The hotter, the faster."

If the digital display starts to get dim, it's time for a new battery. Works well in my betta tank, but provide a couple hours for it to read temp changes. Have checked them against the glass thermometers and the accuracy is right on. These are the perfect size to be easily read while not being obtrusive. So, in those cases, I find it easier to simply replace it. Put them all in the same tank and they read very close to each other. One extra battery came with each unit.

  • Lifegard Aquatics Full-View 5 Gallon Aquarium R800204 with LED Light Heater Thermometer, Net & Built-in Back Filter with Pump
  • Clear angled front glass for greater viewing area
  • Pump included in the full built-in back filter
  • Bonus items included - Full spectrum LED light, heater, thermometer, Net and algae magnet
  • Water level control
  • Insulation base pad
  • Manufacture: Lifegard Aquatics
  • Product Dimensions: 14 x 14 x 10 inches; 18 Pounds
  • Editor's Impressions Of The Lifegard Aquatics R800204
  • Thermometer Accuracy [star rating='3.5']
  • Quality [star rating='4']
  • Value For Money [star rating='2.6']
  • Affordability [star rating='3.8']

Lifegard Aquatics R800204 Final Thoughts

"It's accurate I tell you."

Since adding one of these, it has been much easier to monitor the temp of my tanks. I have kept aquariums for about 45 years. Ordered three of these and they do the job. When I set up my newest tank I will be getting another one of these. For something so cheap, they are working remarkably well. SIX Digital Thermometers with SIX batteries INCLUDED working so well. This little wonder allows me to see at a glance that everything is as it should be.

Overall Score
3.4

[star rating="3.4"]
(5 Points)

2. Non-Contact Infrared Thermometer, ELVASEN Digital Laser Temperature Gun Forehead Infrared Thermomete...

User Ratings: 38 27

ELVASEN First Impressions

"Great product!"

82 PER THERMOMETER with battery included. In this scenario it would probably get knocked loose a lot. I find that the temps are accurate, and this product gives added peace of mind. Very impressed, I have now had them in used for a month so far. And is easily hidden behind a plant. I have this thermometer on all my tanks. Excellent working for our bearded dragon tank.

  • Non-Contact Infrared Thermometer, ELVASEN Digital Laser Temperature Gun Forehead Infrared Thermometer for Baby, Adult, Child, Surface of Objects
  • Measurement accuracy: Body Temperature -- outside (35-42) ℃ ± 0.3 ℃ / 0.54 ℉ / (35-42) ℃ ± 0.2 ℃ / 0.4 ℉; Object Temperature: ± 1.0 ℃ / 1.8 ℉.(Not include battery)
  • Measurement range: Body Temperature -- 32 ℃ to 42.9 ℃ (89.6 ℉ to 109.2 ℉); Object Temperature -- 0 ℃ to 100 ℃ (32 ℉ to 212 ℉)
  • Product Introduction: This product is composed of high-precision infrared sensor, microprocessor, memory chip, power supply, electro-acoustic component, liquid crystal display and housing. It can quickly and accurately measure human body temperature or object temperature.
  • Usage rules -- Human Body Measurement: While waiting, point the thermometer probe at the center of the forehead (above the eyebrow center) and keep it vertical, distance 3 ~ 5cm, press the measurement key to display the measured temperature within about 0.5 seconds; While waiting, press the "-" button once to switch to the temperature measurement mode. Point the thermometer probe at the object and press the measurement button. The measurement temperature will be displayed in about 1 seconds.
  • Working Principle: This product adopts infrared temperature sensing method to measure temperature display or data output. It displays the temperature of the measured object by measuring the thermal radiation of the forehead or object.
  • Manufacture: ELVASEN
  • Editor's Impressions Of The ELVASEN
  • Thermometer Accuracy [star rating='2.4']
  • Quality [star rating='4.2']
  • Value For Money [star rating='2.5']
  • Affordability [star rating='4.4']

ELVASEN Final Thoughts

"So far loving it."

Personally I do not mind the way it looks in my aquarium. For something so cheap, they are working remarkably well. My only complaint is that they tend to be a one time use. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. So much easier than the ones that hang on the inside. Who knows, whatever it was, it was revolting! I can't say which is the most accurate and don't really care.

Overall Score
3.4

[star rating="3.4"]
(48 Points)

3. MECO(TM) Aquarium Glass Hydrometer Fish Tank Water Temperature Thermometer Salt Marine

User Ratings: 50 18

MECO Co. First Impressions

"Fish and me happy."

And for the price you cant beat it. I don't think they are backlit but for the price they are still nice. When I set up my newest tank I will be getting another one of these. So far I've been very thrilled with these. You dont HAVE to stick the display onto your tank. I don't think they are backlit but for the price they are still nice. Personally I do not mind the way it looks in my aquarium.

  • MECO(TM) Aquarium Glass Hydrometer Fish Tank Water Temperature Thermometer Salt Marine
  • Easy accurate readings for aquariums.
  • Green color indicates both ideal temperature and salinity.
  • Reads °C and °F Temperature in ¨H(40-100) and ¡æ(0-40).
  • Measure both Temperature and Specific Gravity of the water.
  • Green indicators are ideal range of water temperature and specific gravity for most salt water/ marine aquariums.
  • Manufacture: MECO Co.,LTD
  • Editor's Impressions Of The MECO Co.
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.1']
  • Affordability [star rating='4.1']

MECO Co. Final Thoughts

"It's accurate I tell you."

I ordered a new one and it works GREAT! 2 deg, if it was 32, it would be a SOLID block of ice. All are pretty accurate within one degree as claimed. Good cheap accurate aquarium thermometer. They reviewed the packaging or shipping by saying it arrived broken. I bent it a little bit and when I put it back it was perfectly fine. I can't say which is the most accurate and don't really care.

Overall Score
3.9

[star rating="3.9"]
(74 Points)

4. Lifegard Aquatics Digital Temp Alert

User Ratings: 63 6

Lifegard R270779 First Impressions

"Just received it today."

I have kept aquariums for about 45 years. They reviewed the packaging or shipping by saying it arrived broken. 2 deg, if it was 32, it would be a SOLID block of ice. So far, they're all doing their job in my four tanks and I am quite content. Checked with temp gun and the terrarium was on target at 88. It is my opinion that everyone should have these that are in the Aquarium Hobby. Works well in my betta tank, but provide a couple hours for it to read temp changes.

  • Lifegard Aquatics Digital Temp Alert
  • A large display digital thermometer with Alert feature Displays both aquarium water temperature and room temperature
  • All include a long-life AAA battery, plastic probe with suction cup and cord
  • All models are safe for salt or fresh water use
  • Manufacture: Lifegard Aquatics
  • Product Dimensions: 6 x 1.25 x 8.25 inches; 6.4 Ounces
  • Editor's Impressions Of The Lifegard R270779
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='4.9']
  • Value For Money [star rating='4.7']
  • Affordability [star rating='4.9']

Lifegard R270779 Final Thoughts

"Buy these."

The lid is textured aluminum, and the suction cups don't stick to that. I was using one of those ubiquitous cheap digital thermometers on Amazon. Then is started to give a low reading, and it is not reading the correct temperature. You dont HAVE to stick the display onto your tank. I've checked it against two other thermometers that are accurate. I guess these units do not like saltwater. Excellent working for our bearded dragon tank.

Overall Score
4.2

[star rating="4.2"]
(89 Points)

5. Wodwad Stick On Aquarium Fish Tank Glass Greenhouse Thermometer Temperature Gauge Sticker

User Ratings: 55

Wodwad First Impressions

"Highly Recommended."

Put them all in the same tank and they read very close to each other. And I just really started to doubt it. I have kept aquariums for about 45 years. 6F all six took about three minutes to read between 88. This company is taking the long term view of how to do business right. I have always had trouble reading the color temp. I ordered this guy and it was 6 degrees hotter than the digital!

  • Wodwad Stick On Aquarium Fish Tank Glass Greenhouse Thermometer Temperature Gauge Sticker
  • ✤ Measure the temperature of your fish tank, your DIY Brew Beer and wine barrel, Terrarium, Greenhouse, Vivarium and any sort of pet tank, or any place in your house
  • ✤ The right water temperature is very important for the health of your fish, get your beer and wine right or use in kitchen or around the home to monitor temperature
  • ✤ Easy to install, just peel off the back of the sticker and the transparent protective film at the front and stick it on the outside wall of the aquarium, that is it.
  • ✤ The thermometer changes its color according to the surrounding temperature. If the surrounding temperature is 27°C, then the background of scale mark   27°C will turn colorful and other scale marks remain black.
  • ✤ Measurement range: Celsius degree18-34°C, Fahrenheit degree 64-93°F.
  • Manufacture: Wodwad
  • Editor's Impressions Of The Wodwad
  • Thermometer Accuracy [star rating='4.1']
  • Quality [star rating='4']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='5']

Wodwad Final Thoughts

"Easy to setup in tank."

And for the price you cant beat it. 49 thermometer that is 100% accurate. It is about 6 inches in length and roughly an inch wide. The plastic from the suction cup quickly turned from a clear to a milky white. Sure enough the digital thermometer was way off by 6 degrees! Good cheap accurate aquarium thermometer. I read some of the 1 star reviews and most of them are not about the product.

Overall Score
4.6

[star rating="4.6"]
(5 Points)

6. uxcell 18 to 34-Degree C Plastic Fish Tank Thermometer Sticker

User Ratings: 32

uxcell a13082400ux0472 First Impressions

"Versatile."

89 I could buy Six Thermometers with Six included batteries. I don't think i'll ever be able to trust a digital thermometer again. You dont HAVE to stick the display onto your tank. The suction cups work well anywhere I have placed it it has not Fallen. It worked great and I highly recommend it! And I just really started to doubt it. This thermometer is spot on accurate.

  • uxcell 18 to 34-Degree C Plastic Fish Tank Thermometer Sticker
  • Product Name : Aquarium Thermometer Sticker;Color : Black, White
  • Material : Plastic
  • Size : Rectangle: 13 x 1.9cm/ 5.1" x 0.75"(L*W);Round: 5cm/2"(Diamater)
  • Weight : 2g
  • Package Contents : 1 × Aquarium Thermometer Sticker
  • Manufacture: uxcell
  • Product Dimensions: 5.07 x 0.74 x 0.12 inches; 0.32 Ounces
  • Editor's Impressions Of The uxcell a13082400ux0472
  • Thermometer Accuracy [star rating='3.8']
  • Quality [star rating='4.8']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='3.8']

uxcell a13082400ux0472 Final Thoughts

"7 reading."

This doesn't bother me as it ws so cheap. In this scenario it would probably get knocked loose a lot. This temperature read a perfect 32 degrees. I got the second one as a bonus that I'm now using in my old tank. 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. So the extra units will always come in handy.

Overall Score
4.1

[star rating="4.1"]
(4 Points)

7. Pavia Veterinary Thermometer. Fast Veterinary Thermometer Gives Accurate Temps in Only 6 Seconds. Be...

User Ratings: 69 31

Pavia First Impressions

"I immediately ordered it."

These are the perfect size to be easily read while not being obtrusive. One being a very expensive digital. SIX Digital Thermometers with SIX batteries INCLUDED working so well. It will make you wonder why nobody thought of it before. Then is started to give a low reading, and it is not reading the correct temperature. These things are useful for a lot besides pet husbandry, too. Now that the chickens are grown, I have one out in the coop as well.

  • Pavia Veterinary Thermometer. Fast Veterinary Thermometer Gives Accurate Temps in Only 6 Seconds. Beeps When Ready. Dogs, Cats, Horses, Pets and Livestock. Trusted by Veterinarians and Pet Owners.
  • VETERINARY THERMOMETER: Fast, accurate rectal thermometer for pets and livestock. The Pavia Rectal Temp thermometer is used by clinics, kennels, rescues, shelters, breeders and pet owners everywhere.
  • FAST AND ACCURATE: Pavia veterinary thermometer gives stable, accurate temperature readings in as quick as 6 seconds. Accurate to within +/- 0.2°F. Beeps when ready.
  • VERSATILE & ERGONOMIC: The small-diameter, 3-inch-long probe enables temperature taking of any size animal. This veterinary thermometer is easy to hold and operate. Large, easy-view, 4-digit LCD.
  • RUGGED & DEPENDABLE: The Pavia Veterinary Thermometer ‘s, smooth exterior disinfects easily with soap or alcohol. Probe covers are not required. Ready to use at the press of a button.
  • IN THE BOX: Genuine Pavia Rectal Temp Veterinary Thermometer, two (2) AAA batteries, Instructions. 90-day warranty.
  • Manufacture: Pavia
  • Editor's Impressions Of The Pavia
  • Thermometer Accuracy [star rating='4.6']
  • Quality [star rating='4']
  • Value For Money [star rating='2.9']
  • Affordability [star rating='3.5']

Pavia Final Thoughts

"Holds a steady 1."

The plastic from the suction cup quickly turned from a clear to a milky white. So far, they're all doing their job in my four tanks and I am quite content. I was using one of those ubiquitous cheap digital thermometers on Amazon. It started working as soon as I put it in and has been working ever since. Have checked them against the glass thermometers and the accuracy is right on. I recommend gluing the suction cups in place where needed for long-term installation. As you can see from my photos, in both°F and°C, all six are within.

Overall Score
3.8

[star rating="3.8"]
(4 Points)

8. Juwel Digital Aquarium Thermometer

User Ratings: 59 12

Juwel JU85702NET First Impressions

"Would buy again."

I find that the temps are accurate, and this product gives added peace of mind. Still a recommendation for me due to price and accuracy. Works well in my betta tank, but provide a couple hours for it to read temp changes. Simple fix, you adjust the thermometer within the suction cup and VIOLA! I needed a solution that was not breakable and these do the trick! I tested this in a cup crammed full of ice and some water. Ambient room temperature measures 72.

  • Juwel Digital Aquarium Thermometer
  • Wipe clean
  • The Juwel Digital Thermometer 2.0 has a large, easy-to-read digital display so you can easily keep an eye on the temperature in your aquarium.
  • Batteries included.
  • Manufacture: Juwel
  • Product Dimensions: 0.39 x 0.39 x 0.39 inches; 1.34 Ounces
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The Juwel JU85702NET
  • Thermometer Accuracy [star rating='3.1']
  • Quality [star rating='4']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='4.6']

Juwel JU85702NET Final Thoughts

"This is perfect."

I got the second one as a bonus that I'm now using in my old tank. 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. So much so that I purchased a second set of 6. Far more accurate than the usual small glass ones or external LCD strips. All are pretty accurate within one degree as claimed. Personally I do not mind the way it looks in my aquarium.

Overall Score
4.0

[star rating="4"]
(1017 Points)

9. Rectal Temp Thermometer

User Ratings: 82 6

Pavia First Impressions

"These are great!"

I removed the batteries of the units I wasn't using right away. 50 thermometers, reads much easier and no suction cup residue, also looks better. I use a small flashlight if I don't want to brighten the area. I recommend gluing the suction cups in place where needed for long-term installation. Ambient room temperature measures 72. Instead she sent a new package of two, both of which work. You can use the thermometer with or without the plastic suction cup.

  • Rectal Temp Thermometer
  • PAVIA RECTAL TEMP THERMOMETER: Fast, accurate rectal temps in as quick as 6 seconds. Used in veterinary clinics the world over, now available direct to clinics, kennels, rescues, shelters, breeders and dog owners everywhere.
  • FAST AND ACCURATE: Stable, accurate temperature readings in as quick as 6 seconds. Accurate to within +/- 0.2°F.
  • VERSATILE &ERGONOMIC: The small-diameter, 3-inch-long probe enables temperature taking of any size animal. Designed for easy holding and operation. Large, easy-view, 4-digit LCD.
  • RUGGED & DEPENDABLE: Tough, smooth exterior disinfects easily with soap or alcohol. Probe covers are not required. Ready to use at the press of a button.
  • IN THE BOX: Pavia Rectal TEMP Thermometer, two (2) AAA batteries, Instructions. 90-day warranty.
  • Manufacture: Pavia
  • Product Dimensions: 2 x 5 x 8 inches; 5.22 Ounces
  • Batteries: 2 AAA batteries required.
  • Editor's Impressions Of The Pavia
  • Thermometer Accuracy [star rating='5']
  • Quality [star rating='4.9']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.8']

Pavia Final Thoughts

"Fish and me happy."

Love it, it's easy to read and keeps an accurate temp. I read some of the 1 star reviews and most of them are not about the product. So versatile, I can read the temperatures literally anywhere. Bought the two pack of thermometers. We are using them to measure various temperatures inside and outside of a motorhome. And is easily hidden behind a plant. The lid is textured aluminum, and the suction cups don't stick to that.

Overall Score
4.6

[star rating="4.6"]
(32 Points)

10. JJMG Fish Tank Thermometer LCD Digital Aquarium Water Terrarium Temperature New Stick-on Glass Round...

User Ratings: 65 12

JJMG First Impressions

"Which is good."

It's kind of difficult to hide and keep out of the way. The digital display itself is easy to read at a glance. A battery can last you up to six months, I'd say, but expect more like three. The plastic from the suction cup quickly turned from a clear to a milky white. Only thing I don't love is how long the cord is. 50 thermometers, reads much easier and no suction cup residue, also looks better. I can't say which is the most accurate and don't really care.

  • JJMG Fish Tank Thermometer LCD Digital Aquarium Water Terrarium Temperature New Stick-on Glass Round Thin Monitor Peel and Stick Easy Installation Fahrenheit Only
  • MAINTAINS NATURAL TROPICAL HABITAT FOR YOU PET - It Is Important To Make Their Environment Temperature As Close As Possible To Their Natural Habitat. Having A Temperature Is Essential To Ensure The Perfect Temperature For Your Pets.
  • ACCURATELY MONITOR WATER TEMPERATURE IN FAHRENHEIT - Digital Thermometer Clearly Displays In Fahrenheit. Don’t Let Your Fish Tank Tell You It’s Too Cold or Hot For Them By Getting ill or Risk of Losing Them. It Quickly And Accurately Tells You The Temperature At A Glance Anytime.
  • AQUA TERRARIUM - Suitable For Different Water Types Such As Fresh Water, Tap Water, Salty Water, Marine Water And Monitors The Living Temperature For Reptile Such As Lizard, Turtle, Etc.
  • EASY SET UP - Self-Adhesive Fish Tank Thermometer Can Easily Be Installed By Tearing Down The Film At The Back Then Simply Sticking It To The Outer Glass Aquarium. Designed For Secure Convenient Placement.
  • EASY TO READ - Large LCD Display Big Numbers Showing Aquarium Temperature.
  • Manufacture: JJMG
  • Editor's Impressions Of The JJMG
  • Thermometer Accuracy [star rating='3.2']
  • Quality [star rating='3.2']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='3.1']

JJMG Final Thoughts

"They are within 0."

Excellent working for our bearded dragon tank. Since adding one of these, it has been much easier to monitor the temp of my tanks. I used these on a number of my aquariums that have discus fish in them. I'm pretty sure those reviewers have acrylic tanks. Ambient room temperature measures 72. These are the perfect size to be easily read while not being obtrusive. If the digital display starts to get dim, it's time for a new battery.

Overall Score
4.1

[star rating="4.1"]
(89 Points)

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