Sun Company Zip-o-gage - Zipper Pull Thermometer for Jacket, Parka, or Backpack | Mini Outdoor Keychain Thermometer

I bought several of these for Christmas gifts. Everyone liked them. They were all the same temperature as my house thermometer, so I feel that they are accurate. They seem made of sturdy plastic on the outside and hopefully they won’t break. The item is small so the temperature marks are a bit harder to see. If you wear readers you might have a hard time seeing the temperature. Wind chill chart is fun but I’m not sure how I’d measure the wind speed while I’m outside. Overall a great little thermometer and I would definitely buy them again.

Perfect for hanging off our backpack. It's too small to read exact temps, but we understood that prior to ordering - we're not interested in an exact temperature, just a general idea.

I bought two of these for kayaking and backpacking. I immediately checked their readings against a NIST calibrated laboratory thermometer and they were both off by less than 1 degree Fahrenheit. Part of that inaccuracy is probably due to the difficulty in reading a unit so small, but they will suit my outdoor needs just fine. Some things to consider: Some reviewers who have attached this to the zipper pull of their jackets and gone out in cold weather have complained of high readings. This is to be expected since your body gives off heat right through your jacket. Also, sun will warm the surface of your jacket significantly. You need to get it away from anything that might be warmer than the air. Also, since it is encased in plastic, it will not respond instantly to changes in temperature. Give it a minute or more to equilibrate.

Product is impossible to read unless you hold it perfectly. When you do manage to read it it is off by ten degrees or more. Unfortunately this is non returnable although given the quality I doubt it actually contains a hazmat. Edit: after writing this review the manufactures customer service reached out to offer me a refund. They confirmed it does not contain mercury and was flagged as hazmat by Amazon for some reason

Knocked points off because no where in the description is the quantity referenced and the pictures gave me the impression two were included. Beyond that it is a handy albeit perhaps tough to read thermometer. It’s is small enough to hang on a bag and such but not as a jacket zipper pull. Over priced for a single unit.

A simple product that does what it says. Lightweight. Not the most durable but i dont plan on hitting it with a hammer.

Had one of these forever and a day ago on my favorite jacket, such a handy camp gadget. The Acrylic face shield can take a beating, but the back panel with the wind chill chart is just a snap in panel. Still it's a great zipper pull on basically any cold weather gear. And I wish I had picked this up a couple years ago when it was 100+°F every day for three months. Heat sneaks up on you just as bad as cold.

Mine reads 10 degrees warmer than displays of other outdoor temperature readings. At least an even 10 is easy to subtract to get a correct reading. The thermometer works it's just that the printed scale is positioned too low. Other than that it's what I wanted, a tiny thermometer with a fine print scale.