Penn-Plax AquaLIFE Therma-Temp Digital Aquarium Thermometer, 2-in

Deal
Skip image gallery
Slide 1 of 4
$3.74 (-6%) Chewy Price
$3.99 List Price
Promo, Spend $100, Get $30 eGift Card with code NEWYEAR
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

Pay in 4 interest-free payments on purchases of $30-$1,500. .

About This Item

Details

  • Thermometer mounts conveniently on the outside wall of aquariums.
  • Pressure-sensitive backing for easy application.
  • Numbers are clear and easy to read.
  • Green color shows the correct temperature of the water.
  • Keeps your finned friend’s home at a comfortable climate.

Frequently bought together

Questions & Answers

6 Customer Questions

Someone asked this but it was not answered. Will this work on an acrylic aquarium?

Answer by Chewy • May 05, 2020
This thermometer is intended to be mounted on the outside of glass aquariums.

Can I use this theremometer for a gecko tank?

Answer by Chewy • Mar 09, 2020
This thermometer is designed for reading water temperature in an Aquarium.

Does a alarm go off if water gets to low.

Answer by Chewy • Sep 30, 2019
This thermometer is intended to show the temperature of your aquarium.

Can this thermometer work on a curved bowl?

Answer by Chewy • Sep 13, 2019
This thermometer is meant to sit flush with a flat surface and is not meant for a curved or uneven surface.
Reviews
Write a Review
3.9
Rated 3.9 out of 5 stars
63 Ratings
Terms & Conditions

32 Customer Reviews

Rated 5 out of 5 stars
By Sonya on Mar 23, 2025

Great product!

Spot on for temperature!!!!

Spot on for temperature!!!!

Rated 5 out of 5 stars
By strider on Nov 25, 2024

I can actually read it...and from a distance to boot!

I think I answered this question with the above "Title your review."

I think I answered this question with the above "Title your review."

Rated 5 out of 5 stars
By Travis on Dec 24, 2024

Just amazing

Helps teach my stupid kid what Celsius is

Helps teach my stupid kid what Celsius is

Rated 2 out of 5 stars
By Jodie on Jun 16, 2024

Not a great thermometer

I ordered this thermometer to measure the temperature on my aquariums. The numbers are very small and it is difficult to read the temperature due to the color readings

I ordered this thermometer to measure the temperature on my aquariums. The numbers are very small and it is difficult to read the temperature due to the color readings being unclear. This thermometer was a waste of time, and I will have to order something else to meet the needs of my pets.

Rated 4 out of 5 stars
By George on Nov 13, 2024

nice and small

Perfect size and hidden away nicely under bottom of tank

Perfect size and hidden away nicely under bottom of tank

Rated 1 out of 5 stars
By Jana on Jan 17, 2025

Stick on

Too hard to read :(

Too hard to read :(

Rated 4 out of 5 stars
By holly on Mar 11, 2024

Very good little thermometer. It was exactly what my daughter needed for her betta fish tank. She didn’t want something that would block her view or come off when

Very good little thermometer. It was exactly what my daughter needed for her betta fish tank. She didn’t want something that would block her view or come off when wiping her tank exterior easily. Recommended if you are looking for a lower budget dependable thermometer.

Rated 5 out of 5 stars
By ALICE on Feb 14, 2024

Digital Aquarium Thermometer

SMALLER THAN I EXPECTED - BUT WE CAN WORK WITH IT - HAPPY OTHERWISE

SMALLER THAN I EXPECTED - BUT WE CAN WORK WITH IT - HAPPY OTHERWISE

Rated 5 out of 5 stars
By Teddy on Aug 27, 2024

I Love Chewys

I Love Chewys

Rated 5 out of 5 stars
By Dove on Feb 20, 2023

For those who get no reading

I've used these for years and have never had a problem with them. They are awesome. I have seen a lot of reviews that say it doesn't show any reading. My thoughts

I've used these for years and have never had a problem with them. They are awesome. I have seen a lot of reviews that say it doesn't show any reading. My thoughts are your water temps are either too low or too high when you were trying to use these strips. You can test it against a floating thermometer initially to get the right range if this has been your experience. Your temps may be just out of range of the strip.