ThermoDrop® Zipper-Pull Thermometer

A tiny ambient thermometer for jackets, backpacks, and fridges.

SKU:TX-5300-WH

$25.00
Color: White
In stock

ThermoDrop® is a keychain-sized ambient thermometer that tells you the temperature of your world — not a weather station miles away. Clip it to your keys or bag for outdoor temps, use it in a greenhouse or shed for plants, or hang it in the fridge to monitor food safety. Big, backlit digits make the temperature easy to read at a glance, even in low light.

Built to go wherever you do, ThermoDrop is waterproof to IP67; tough enough for rain, snow, and spills; and accurate to ±1.8°F. It saves high and low temperatures, rotates automatically so it’s easy to read from any angle, and runs for months on a single coin cell battery. From ski days to grocery runs to keeping tabs on the fridge at home, ThermoDrop gives you a simple, reliable read on the world around you. 

  • Know the True Temperature: Measure where you actually are instead of relying on a forecast or phone app guess.
  • Clip It Anywhere: Attach ThermoDrop to zippers, backpacks, and keys, or hang it inside fridges and freezers.
  • Read It at a Glance: Big, backlit digits stay clear indoors, outdoors, and at night.
  • Track Temperature Swings: Min/Max memory shows how cold it got overnight or how warm it reached during the day.
  • Built for Weather and Mess: IP67 waterproof rating stands up to rain, snow, and splashes.
  • Trust Every Number: NIST-traceable calibration ensures accuracy within ±1.8°F.
  • Set It and Forget It: Up to ~4,000 hours of battery life on one CR2025 coin cell.
  • Take It Anywhere: Weighs just 14.3 grams for backpacking, hiking, fishing, or ultralight travel.

Everything you need to know about the ThermoDrop® Zipper-Pull Thermometer. Browse full specifications and additional product support details below.

Overall rating: 4.5125628 / 5 from 995 reviews.

AI Generated Review Summary

The ThermoDrop® Zipper-Pull Thermometer is a compact, keychain-sized device that offers accurate temperature readings and is waterproof to IP67. Customers appreciate its ease of use, vibrant colors, and ability to track outdoor temperatures effectively. It features a backlit display for readability in low light and automatically rotates for convenient viewing from any angle.

Summary topics

  • Product Quality: 4%
  • Product Size: 14%
  • Device Usability: 3%
  • Temperature Accuracy: 11%
  • Color Variety: 5%

Review topics: ["colors","shipping","fit","spot","improvement","quality","size","issues","light","value","service","protection","weight","design","display","looks","battery","heat","material","cover","surface","shape","performance","works","support","versatility","customer service","face","style","grip"].

Review highlights

  • "I like the size and color selection; this rectangle is great for larger dishes and pans when using as trivet."Connie L.
  • "I really like the size of these Silicone Hotpads as the size is great for larger pans and casserole dishes."Marilyn E.
  • "The trivet is big enough to give protection to set a good size hot pan or platter on a counter or table."Sandi T.

Reviews

Great thermometer for hiking and camping.

"Bought two of these just to have a spare or use elsewhere. Quite surprised at how quick it adjust between different temp zones. I like that it reads either right side up or upside down. So far, I've been impressed. I got one in yellow so it was easy to find and one in purple because, well I just like purple."

Erik W. (5/5)

Love these little guys

"We use these thermometers to monitor the temperature in our RV refrigerator. They are perfect for that job. After three years, one of them needed a new battery. Put the thermometer in my pocket to install the battery later. Without checking the pockets, dropped the jeans in the wash. One wash and dry cycle later, I put a new battery in it and it works! A great little product and tough too."

Bob C. (5/5)

you should post more information

"The manufacturer's info is misleading by omission. Just tell us: 1. How long does it take to register ambient reading? 5 minutes? 10 minutes? Many people have the same question and complaint. Your description should be honest. 2. Do we have to turn it off or does it have an auto off feature? Can you just say which it is in your description? I tried to read reviews to figure this out and I still don't know the answer. Yes, for $25, this info should be open and available. Thank you!"

butterrybuns (3/5)

Zipper Thermometer

"I have not had a change to use this little thermometer in the field, but while learning its function it worked perfectly in my garage."

Michael S. (5/5)

Great but needs to reset

"It would be nice if the low temp reset every 24hrs so I don't have to turn it off and on every morning."

Simon D. (4/5)

Comprandolo dall’Italia è costato moltissimo,

"Comprandolo dall’Italia è costato moltissimo, viene influenzato troppo facilmente dal calore della mano e mi sarebbe piaciuto ci fossero stati anche i decimali. . Apprezzo molto l’estetica, la grandezza e il design del termometro"

Diego N. (3/5)

"Small, light, and easy to use."

ROBERT (5/5)

slow to change, failed after a couple years

"I bought one of these because of how much I love my ThermoPop, and expected it to have similar responsiveness. Not so. Every time I looked at it, it seemed like it was showing me the temperature from like 15 minutes before when Iâd been in the car, or before Iâd come indoors. Then after a couple years it just started showing HHH on the screen intermittently. If I bumped it, it would then jump back to the correct temperature. (Also, not for nothing, but the split ring that ships with it is nearly impossible to install because itâs tiny and the hole it goes into is massively offset. You have to bend the ring to an absurd degree to get it on there. Not a great experience. )"

Damian (2/5)

Thick and easy to clean.

"I recently bought a cuisinart toaster oven/air fryer. The basket or pan is really hot, and I hate to have to lay a bunch of pot holders down to protect my countertop. I bought 2 of these, and lay one next to the toaster oven to set my baking sheet, or air fryer basket on. I do wish they made a larger one for a large casserole dish, but as I bought two, I will just lay then side by side. Most mats only protected to 350 degrees, but these protect up to 600 degrees."

Laura (5/5)

Lightweight easy to use

"Bought two for winter camping, one for the inside and one for the outside of the tent. Chose this over a âsmartâ sensor/app solution because itâs lightweight and shows temp in a display. Battery is replaceable CR2032 (standard type you can get anywhere). Variety of different colours to match gear or as high visual contrast so you donât lose it. Will recommend -not waterproof, would be nice to measure water temp (in lakes etc) or leave it hanging in the rain. ."

Jan L. (5/5)

Q&A

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$25.00