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PAIZOO Aquarium Thermometer, LED Digital Thermometer for Fish Tank with USB Power, Highly Accurate Waterproof Temperature Gauge with Suction Cup and 6.5ft Power Cord for Saltwater and Freshwater

  • Based on 99 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Thursday, Jul 30
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Size: ATCH


Features

  • Fish Tank Necessary Accessories: If you are looking for a premium product that is long-lasting, accurate, and durable, this aquarium thermometer from PAIZOO may be perfect for you. This upgraded aquarium thermometer with waterproof, suction cup fixing, led constant light and USB power supply is updated so that it can meet more users' habits
  • High Accuracy Measurement: This fish tank thermometer uses highly accurate electronic chip, which is more accurate compared to traditional thermometers, and because the tank thermometer is placed directly in the water, the probe is in direct contact with the water for more sensitive measurements
  • LED HD Display: Knowing the temperature of your aquarium pet's environment at all times is vital for them. This LED digital thermometer from PAIZOO will be your first choice. It has a 2.56in LED display on the front, which is always on. No matter day or night, just a glancing can tell the temperature inside the water tank
  • Safety is Paramount: The thermometer for fish tank uses 5V ultra-low voltage, and the internal circuit board is fully enclosed design, internal potting embedded insulator technology, high strength to prevent seepage and leakage, to ensure the safety of you and your aquatic friends is our primary goal
  • Plug-And-Play: This aquarium thermometer needs to be plugged in for use and the USB power cord is 78.74 inches long, great if you have a large tank and need the extra cord length. And is mounted onto a strong suction cup with an adjustable mechanism for custom positioning

Brand: PAIZOO


Special Feature: High Accuracy, Large Display


Color: Black


Age Range (Description): Adult


Included Components: 1*Aquarium Thermometer, 1*User's Manual, 3*Fixed Suction Cup


Outer Material: Plastic


Display Type: LED


Connectivity Technology: Usb


Product Care Instructions: Hand Wash Only


Unit Count: 1.0 Count


Brand: ‎PAIZOO


Special Feature: ‎High Accuracy, Large Display


Color: ‎Black


Age Range (Description): ‎Adult


Included Components: ‎1*Aquarium Thermometer, 1*User's Manual, 3*Fixed Suction Cup


Outer Material: ‎Plastic


Display Type: ‎LED


Connectivity Technology: ‎Usb


Product Care Instructions: ‎Hand Wash Only


Unit Count: ‎1.0 Count


Power Source: ‎Usb Power


Model Name: ‎ATCH


Item Length: ‎1.98 Inches


Response Time: ‎0.5 minutes


Reusability: ‎Reusable


Lower Temperature Rating: ‎68 Degrees Fahrenheit


Style: ‎Contemporary


Indoor/Outdoor Usage: ‎Indoor


Manufacturer: ‎PAIZOO


Item Weight: ‎3.52 ounces


Item model number: ‎ATCH-1


Date First Available: ‎December 8, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Still working.
I was skeptical on whether this would last very long in an aquarium. Has been in the water for many months and have zero issues with it!
Reviewed in the United States on November 17, 2025 by Marlin Snell

  • So much easier to read than any other thermometer!
This is by far the best thermometer for the aquarium. I have used many other types but this one is the easiest to read. Nothing else (particularly the LCD types) begins to compare.
Reviewed in the United States on December 19, 2024 by KA8OXF

  • works well but the suction doesn't last
I have it for a few weeks now and it works perfect. But the suction cup failed after a few days, had to replace it.
Reviewed in the United States on December 24, 2024 by Pazit Polak

  • Finally - one that is accurate!
I have purchased and wasted lots of money going thru several thermometers in the last couple of years trying to find one that is actually somewhat accurate and FINALLY found one. This one is dead on!! Occasionally I see it going off about .1 off; but I will take it. I can trust it showing me what the temp actually is in my aquarium. So easy to read. If you have been in the same boat as me and wanted something that works, give this one a try. ... show more
Reviewed in the United States on July 11, 2024 by Jen M.

  • It broke in just over a year.
After a few months parts of the digital display stopped working so you had to guess the temperature. After just over a year it stopped working completely.
Reviewed in the United States on November 3, 2025 by Sathe Angeletti

  • Strictly an Aquarium thermometer--nees to be immersed in water
I'm giving this a good rating but I never really used it. I bought it with the express purpose of using it for air temperature, but it needs water to work right. Stupid me. I had to return it. I didn't test it in water but the quality device appears to be excellent.
Reviewed in the United States on October 21, 2025 by DanC

  • Best for buy
Works great, my go toloop
Reviewed in the United States on October 12, 2025 by marvin meeks

  • Mounts inside aquarium
You don’t have to push a button to see what the temperature is however, it does mount on the inside of the aquarium. The suction cups are on the back, so I’m assuming you have to stick it on the backside of your aquarium and look all the way through your aquarium to see it. I have too many plants in my aquarium for that I took the clear plastic suction cup (attached to the cord) and turned it around so that I can mount it up against my front glass. I have some concerns of not being able to see it well through possible algae buildup on the outside, but I’ve only had it for a couple of days so not a problem so far. ... show more
Reviewed in the United States on September 16, 2024 by William Bolin William Bolin

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