Carefree Fish Replaceable Battery Digital Aquarium Thermometer

Product description

US Patent No.:D138779S

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Carefree Fish Aquarium Led Display Thermometer

Do not use hot water or cold water to test the accuracy of the thermometer. Abrupt temperature changes may cause damage to the thermometer’s chip.After installation, wait for 5 minutes and you can measure the accurate temperature.

Measurement error: ±0.9℉

Since the temperature being measured is that of the outer glass of the fish tank, if the temperature difference is significant or if a heater is used, the water temperature inside the tank will not be stable, and the measurement error can reach 2~6℉

Measurement range: 32 – 140℉

Replaceable Battery Rotate-Open Rotate-Close

Quick installation and replacement of batteries

It cannot be moved after installation. It is equipped with an extra adhesive. The thermometer can be removed by using a thread.

Touch-Wake up

It will automatically turn off after 10 seconds.

Sense of Technology LED Display

The temperature value can be clearly read both during the day and at night

Small Size

Size:1.7*1.7*0.4Inch

Battery Model:CR2032

Product Dimensions ‏ : ‎ 1.7 x 0.4 x 1.7 inches; 0.63 ounces
Item model number ‏ : ‎ SZYXJWDJ1
National Stock Number ‏ : ‎ 70121801
Batteries ‏ : ‎ 1 CR2032 batteries required. (included)
Date First Available ‏ : ‎ August 20, 2025
Manufacturer ‏ : ‎ Carefree Fish
ASIN ‏ : ‎ B0F63GVKRD
Best Sellers Rank: #29,512 in Pet Supplies (See Top 100 in Pet Supplies) #21 in Aquarium Thermometers
Customer Reviews: 4.4 4.4 out of 5 stars (166) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Replaceable CR2032 Battery & Detachable Design:Powered by a CR2032 battery with up to 1 year service life. Thanks to the card-slot structure, the thermometer can be quickly removed and reinstalled without tearing off the adhesive.
Precise Temperature Reading:Temperature measuring range: 32–140°F. Provides reliable readings with an error range of ±0.9°F, helping you keep a stable living environment for your aquatic pets.
Simple External Installation:Stick the thermometer on the outer glass of your fish tank below the water line using the included adhesive. Allow 5 minutes for stabilization to get accurate internal water temperature readings.
Convenient Touch Wake-Up Display:Simply tap the unit to activate the LED screen. The display will automatically turn off after 10 seconds to save battery power.
Important Notice: This thermometer is NOT waterproof; only use it outside the aquarium glass. Once adhered firmly, it is hard to reposition. One extra spare adhesive pad is included for your future use.