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']

Here Are Some Other Related Aquarium Thermometers

2. Abnaok Salinity Tester, Sea Specific Gravity Test for Fish Tank Pond Water Saltwater Freshwater, Acc...

User Ratings: 68 14

Abnaok First Impressions

"Great price too."

So far, they're all doing their job in my four tanks and I am quite content. It worked great and I highly recommend it! So versatile, I can read the temperatures literally anywhere. I can't say which is the most accurate and don't really care. The lid is textured aluminum, and the suction cups don't stick to that. So versatile, I can read the temperatures literally anywhere. As you can see from my photos, in both°F and°C, all six are within.

• Abnaok Salinity Tester, Sea Specific Gravity Test for Fish Tank Pond Water Saltwater Freshwater, Accurate Automatic Hydrometer
• Safe Material:Made of plastic,aquarium clear Automatic Accurate Readable SaltWater Hydrometer.
• Durable Clear Acrylic:Accurate, durable, and easy to read your marine aquarium's salt level and specific gravity,Small and waterproof.if the specific gravity between 1.000 - 1.019,show that the specific gravity is small;if the specific gravity between 1.020 - 1.023,show that the specific gravity is nomal;if the specific gravity between 1.024 - 1.030,show that the specific gravity is big;
• Clearly Safe Zone Indicated:Includes solinity and specific grovity scales.The outside rang of scale indicates salinity(PPT).The inside range of scale indicates gravity.And with safe zone clearly indicated.Range of use: 0-40 degrees (1.000-1.030).If the salinity ppt between 32 - 40，show that the salinity hydrometer is high;If the salinity ppt between 27 - 31，show that the salinity hydrometer is normal; If the salinity ppt between 0 - 26，show that the salinity hydrometer is light.
• Wide Usage:Fit for brackish and marine aquariums.Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes solinity and specific grovity scales.Suitable for fresh water and sea water.
• Easy to Read and Use:The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result.
• Manufacture: Abnaok

• Editor's Impressions Of The Abnaok
• Thermometer Accuracy [star rating='3.5']
• Quality [star rating='4.5']
• Value For Money [star rating='4.1']
• Affordability [star rating='3.8']

3. Neptonion Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Ter...

User Ratings: 72 5

Neptonion First Impressions

"Buy these."

So far I've been very thrilled with these. Then she followed up again on that, asking if they had arrived and were okay. Only thing I don't love is how long the cord is. It is easy to use and install it'disappears' in your tank it is so unobtrusive. It is large enough to see without being obtrusive. I don't think i'll ever be able to trust a digital thermometer again. It started working as soon as I put it in and has been working ever since.

• Neptonion Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Terrarium Temperature for Fish and Reptiles Like Lizard and Turtle
• - Easy to read : With compact design ,The Large LCD display unit is easy to read.
• - °F / ℃ : It records a wide range of temperature （can be read in Celsius or Fahrenheit）, which makes it exceptionally useful in that you can use it in any kind of fish tank.
• ⏰ - Precise : Displaying temperature measurements within 0.1 degrees! And has a temperature range from -50 to +70 degrees celsius.
• - Easy to set up : This thermometer comes with two parts that have suction cups that simplify the mounting process.
• - Durable : it’s powered by one LR44 battery. These are very long lasting and easy to replace. Making this a great choice if you’re looking for an accurate and durable thermometer.
• Manufacture: Windbells
• Batteries: 1 LR44 batteries required. (included)

• Editor's Impressions Of The Neptonion
• Thermometer Accuracy [star rating='3.4']
• Quality [star rating='4.7']
• Value For Money [star rating='4.6']
• Affordability [star rating='4']

4. SHARPTEMP-V. Fast, Accurate Temperatures in 8 to10 Seconds. Beeps When Ready. 5-Inch Stainless-Steel...

User Ratings: 72 4

COTRAN CORPORAT First Impressions

"Overall a great buy."

82 PER THERMOMETER with battery included. At least in the first 3 months of use. If the digital display starts to get dim, it's time for a new battery. Water tested with Autidefy brand for two hours. The plastic from the suction cup quickly turned from a clear to a milky white. Excellent working for our bearded dragon tank. When and if we run out of this batch, I'll instantly order another batch.

• SHARPTEMP-V. Fast, Accurate Temperatures in 8 to10 Seconds. Beeps When Ready. 5-Inch Stainless-Steel Probe With Rounded Tip. Safe for All Farm Animals & Pets.
• DIGITAL ANIMAL THERMOMETER: The Sharptemp-V Veterinary Livestock and Pet 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 5-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. Thermometer reads Fahrenheit ( °F) only.
• VERSATILE & SAFE: Designed of 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-V digital veterinary animal thermometer with 5-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-V Veterinary Animal Thermometer. Your satisfaction is 100% guaranteed!
• Manufacture: COTRAN CORPORAT
• Batteries: 1 LR44 batteries required.

• Editor's Impressions Of The COTRAN CORPORAT
• Thermometer Accuracy [star rating='4.2']
• Quality [star rating='4.3']
• Value For Money [star rating='4.2']
• Affordability [star rating='5']

5. Aquarium Submersible Glass Thermometer With Suction 14Cm Hydrometer Waterproof Fish Tank Durable

User Ratings: 59

Fashion Life First Impressions

"Great for price."

He was moving slow in the winter and we realized he needed a heater! Place it on your aquarium and you are good to go. One being a very expensive digital. When and if we run out of this batch, I'll instantly order another batch. So this is the extreme end of the high temperature range. So, in those cases, I find it easier to simply replace it. He was moving slow in the winter and we realized he needed a heater!

• Aquarium Submersible Glass Thermometer With Suction 14Cm Hydrometer Waterproof Fish Tank Durable
• Aquarium and exo terra reptile tank thermometer.
• Made of high quality glass, clear and easy to read.
• Stable and durable enough for a long time use.
• Manufacture: Fashion Life

• Editor's Impressions Of The Fashion Life
• Thermometer Accuracy [star rating='4.4']
• Quality [star rating='3.5']
• Value For Money [star rating='3.5']
• Affordability [star rating='4.8']

6. Fluval Submersible Digital Thermometer

User Ratings: 63 12

Fluval 11194 First Impressions

"Perhaps it's my fault."

Very impressed, I have now had them in used for a month so far. My only complaint is that they tend to be a one time use. This thermometer is spot on accurate. So much easier than the ones that hang on the inside. Sure enough the digital thermometer was way off by 6 degrees! I have this thermometer on all my tanks. 6 inch long Bala Sharks that are known to be very unruly and boisterous.

• Fluval Submersible Digital Thermometer
• Features a large LED display
• Fully submersible thermometer
• Large screen for easy reading
• Country Of Origin: China
• Manufacture: Rolf C. Hagen (USA) Corp.
• Product Dimensions: 1 x 2.6 x 4.9 inches; 0.81 Ounces

• Editor's Impressions Of The Fluval 11194
• Thermometer Accuracy [star rating='4.5']
• Quality [star rating='3.2']
• Value For Money [star rating='3.3']
• Affordability [star rating='3.9']

7. Penn-Plax Stainless Steel Thermometer

User Ratings: 52 25

Penn-Plax 54537105 First Impressions

"Only thing the battries."

I don't think they are backlit but for the price they are still nice. I have mine on my 60 gallon cube marine tank. Since it is a mercury thermometer, it is very accurate. One of my aquariums is glass, and the other two are plastic. Personally I do not mind the way it looks in my aquarium. This temperature read a perfect 32 degrees. I find that the temps are accurate, and this product gives added peace of mind.

• Penn-Plax Stainless Steel Thermometer
• Penn-Plax is committed to creating and manufacturing innovative pet products
• Penn Plax is a name that stands for Quality Innovation and Integrity
• Experience a great line of Pet Products
• Manufacture: Pro-Motion Distributing - Direct
• Product Dimensions: 5 x 2 x 4 inches; 0.71 Ounces

• Editor's Impressions Of The Penn-Plax 54537105
• Thermometer Accuracy [star rating='2.6']
• Quality [star rating='4']
• Value For Money [star rating='3.8']
• Affordability [star rating='4.5']

8. 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 [star rating='5']
• Quality [star rating='4.2']
• Value For Money [star rating='3.2']
• Affordability [star rating='4']

9. STEBCECE 9Pcs Brine Shrimp Incubator DIY Aquarium Hatching System Cap Connection Tee Regulator Hose ...

User Ratings: 51 49

STEBCECE First Impressions

"These are great!"

Set all six probes up in a terrarium with a constant temp of 88. All were Close enough for a fish tank and other uses. Good cheap accurate aquarium thermometer. Put them all in the same tank and they read very close to each other. It is always where yo last put it and it is very easy to see and read. In this scenario it would probably get knocked loose a lot. It will make you wonder why nobody thought of it before.

• STEBCECE 9Pcs Brine Shrimp Incubator DIY Aquarium Hatching System Cap Connection Tee Regulator Hose Check Cultivation Kit for Ornamental Fish
• ❋Easy to use, convenient to Hatch.
• ❋Simple, practical, convenient to hatch shrimp for feeding fish.
• ❋Can be directly into the harvest shrimp eggs, sea salt and water
• ❋Connect with air p ump, eggs can be hatched within 24 hours .
• ❋Good for the shrimp egg to feed the ornamental fish larvae.
• Manufacture: STEBCECE
• Item Weight: 1.98 Ounces

• Editor's Impressions Of The STEBCECE
• Thermometer Accuracy [star rating='2.4']
• Quality [star rating='3.2']
• Value For Money [star rating='3.9']
• Affordability [star rating='2.2']

10. Amagle Indoor Digital Thermometer Aquarium Submersible Fish Tank Terrarium LCD Digital Thermometer

User Ratings: 51

Amagle YG_DMH002 First Impressions

"Or left a mark."

I had my heater set at 73-degrees and the thermometers showed 74. 50 thermometers, reads much easier and no suction cup residue, also looks better. One extra battery came with each unit. 89 I could buy Six Thermometers with Six included batteries. The units each had a battery in place and situated for immediate use. 6F all six took about three minutes to read between 88. I can't say which is the most accurate and don't really care.

• Amagle Indoor Digital Thermometer Aquarium Submersible Fish Tank Terrarium LCD Digital Thermometer
• Celsius or Fahrenheit selectable
• Measure both tank and indoor temperature
• Large LCD display simultaneously showing aquarium & ambient temperature
• With adhesive tape at back side for easy sticking on aquarium tank
• Sensor at the back of the thermometer to measure water temperature from glass. Therefore, normally it would measure 1 degree higher than actual water
• Manufacture: Amagle
• Item Weight: 1.1 pounds
• Product Dimensions: 5.51 x 3.15 x 0.39 inches

• Editor's Impressions Of The Amagle YG_DMH002
• Thermometer Accuracy [star rating='3.7']
• Quality [star rating='4.8']
• Value For Money [star rating='3.5']
• Affordability [star rating='3.1']