Digital Thermometer with External Sensor, Magnet, Suction Cup, Water Thermometer, Aquarium, Refrigerator, Freezer (Black)

$9.99

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Price: $9.99
(as of Aug 11, 2025 08:48:34 UTC – Details)


An external sensor with a 59in cord is ideal for temperature measurements underwater, inside refrigerators, freezers, and at remote locations.The LCD screen is large and easy to read, so you can check it even from a distance.
Product Dimensions ‏ : ‎ 3.1 x 2.8 x 1.1 inches; 2.47 ounces
Item model number ‏ : ‎ [‘HSK-2207-27’]
Batteries ‏ : ‎ 1 AAA batteries required. (included)
Date First Available ‏ : ‎ March 4, 2024
Manufacturer ‏ : ‎ HATUSOKU
ASIN ‏ : ‎ B0B7LRM2KQ
Best Sellers Rank: #6,920 in Kitchen & Dining (See Top 100 in Kitchen & Dining) #14 in Refrigerator Thermometers
Customer Reviews: 4.3 4.3 out of 5 stars 1,943 ratings 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); } }); });

[Thermometer with external sensor] This is a thermometer with an external sensor that can measure remote locations.Measure the temperature with a temperature sensor attached to the tip of the cord.
[For water temperature management of aquarium] The temperature sensor is waterproof.Ideal for temperature control of aquariums such as tropical fish, goldfish, killifish, and reptiles.The thermometer body is not water resistant.Not suitable for seawater.
[For refrigerator temperature control] A magnet is attached to the back of the main unit.It sticks to the refrigerator, so it is recommended for temperature control of the refrigerator and freezer.
[Simple and easy to read numbers] A simple design that only displays the temperature.Despite its compact body, the large LCD screen makes it easy to see the numbers.
[Specifications] Body size: 3.0in x 2.8in x1.1in Sensor cord length: 59in Weight:2.2oz Measurement temperature: -40℉ to 158℉ Measurement accuracy: ±1°C Maximum/minimum value display function included [PackingContents]: Main unit, AAA battery, Instruction manual, suction cup

Customers say

Customers find the thermometer accurate and easy to use, with a large, easy-to-read display that can be seen across the room. They appreciate its functionality, particularly in coolers, and consider it good value for money, with one customer noting it’s perfect for garage freezers. Customers find the thermometer dependable and well-built.

13 reviews for Digital Thermometer with External Sensor, Magnet, Suction Cup, Water Thermometer, Aquarium, Refrigerator, Freezer (Black)

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  1. Beth C

    Works great in our camper refrigerator
    Purchased to keep track of temps in our camper refrigerator – easy to put above refrigerator to enable us to check the temps without continually opening the door to check. Seems accurate, quality is good, bright enough to see easily and very pleased.

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  2. HTH – Hope This Helps

    Works and a good value.
    Large digital display. Sensor sends accurate temperature. This model does not display real time temperatures, but at 10 second increments. Works as advertised.

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  3. Whiteivory

    Very good general purpose thermometer for our RV refrigerator. Easily readable and reliable.
    We are using this with our RV refrigerator when out. The thermocouple probe/sensor and wire slip right between the door gaskets and gives us a good idea of the internal temp. Its demonstrated good battery life and is easily readable…a good design. Well built, it continues to perform well.

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  4. CannonFodder73

    Simple and accurate, but cord is thick (not great for freezers)
    Pros:- Temperature readings match calibrated thermapen within thermapen’s tolerance.- Uses regular easy to find and cheap AAA batteries. This is reason alone to buy it as coin cells quickly cost more than the unit!- Display is large/clear enough for old eyes to see across the room.- Feature (min/max) work as expected- Works well as a remote sensor for aquariums, greenhouses, and outside air hanging out a window.Cons- Thick cable leaks cold from upright fridge/freezer. Put sensitive part of face up to cable passing under door seal, and you’ll feel significant cold air draft if your fridge/freezer has a circulation fan. While the freezer might keep up, its significantly increasing energy consumption and shortening the compressor life. Use in a chest freezer (without forced fan) seems to leak much less cold air. There is also no frost buildup right around cable inside the freezer indicating little air leak.- No alarms. A high or low alarm would be desired if a fridge/freezer is too warm, or a greenhouse/aquarium is too cold.

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  5. Albie

    Works good and it is pretty good quality.
    I use this to monitor my ice chest temperature and it works great. It has a nice long sensor wire. My ice chest lid crushes the sensor wire but does not damage it. The temperature memory function is cool. I like it.

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  6. Angie M.

    Great product!
    Great digital thermometer. The external sensor has a magnet which I attached to the outside of my freezer. Now I can pass by checking the temperature without opening the door. Easy to read large display and the set up is very easy.

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  7. Christa Ferguson

    Digital thermometer
    Got this thermometer at the end of April and it is no longer working. Try to reset it, put new batteries in it still not working. Did not recommend this product.

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  8. jim

    worked well for a couple momths
    Does not last in a hot tub. sensor gets eaten away.

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  9. 江澤ひろ子

    冷蔵庫内の温度を知りたいだけなので、安くてわかるのて、良かったです。

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  10. Bigtone

    This does exactly as I need it to do I have it in my RV refrigerator

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  11. SSS

    大きさは小さ過ぎず、見やすい大きさで調度良いです。この手の温度計はいくつも買いましたが、何年か後に温度センサー部分が悪くなり温度の制度が悪くなりますね。

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  12. Gaye Preece

    Check the temp of my pool easily now. No more shock when I dive in

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  13. 花子・鼻血・花見

    画面が大きくて見やすいので、マスキングテープに”-0.5℃”して読むと貼って使います。屋内金魚飼育を始めて1年9か月です。やはりニチドウは凄いと思いました。アナログ水温計は、エヴァリスきっちりL一択。見やすいようにデジタル水温計も併用しています。ニチドウのマルチ水温計CTをいくつか使用していて、接続不良や、誤差が0.2℃→0.8℃になったので、今回こちらを購入しましたが、最初から0.5℃の誤差がありました。取説で±1℃は許容範囲となっているので、十分なのでしょうね。。。正確に温度を測るのはけっこう大変なものなのですかね。コロナ禍、安い体温計を買ったら、まったく使い物にならないこともありました。

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    Digital Thermometer with External Sensor, Magnet, Suction Cup, Water Thermometer, Aquarium, Refrigerator, Freezer (Black)
    Digital Thermometer with External Sensor, Magnet, Suction Cup, Water Thermometer, Aquarium, Refrigerator, Freezer (Black)

    $9.99

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