Control Traceable 4648 Jumbo Display Vaccine Thermometer with 5ml Round Bottle, -50°C to 70°C (-58°F to 158°F) Range, 0.1° Resolution

I bought this for monitoring a large deep freeze with beef in it. I originally had ordered a wireless thermometer / freezer alarm but it did not work and was returned.This thing is pricey but I am VERY pleased with it in the short time I have had it. It has a high and low temp alarm, is very accurate, and does not show temp swings from opening the freezer. I could have gone with the smaller display version but this thing gets my eye every time I come in the garage so I don't forget to check it. The quality seems very good, it has multiple mounting methods and does what I bought it for. I don't have to worry about it loosing a wireless connection like the ACU_RITE Refrigerator/Freezer Wireless Digital Thermometer 00986 that I returned.

I bought these to monitor temperatures in a scientific freezer and a scientific refrigerator in which we are storing COVID-19 vaccine, and they are PERFECT! They were easy to set up, and have been highly reliable.The price point is very reasonable, and the product is excellent - I recommend these, without reservation.

Set it on top of my garage freezer. Easy to read at a distance. Alarms work fine.Wish it came with some type of securing clamp or bracket to hold the sensor tube. I had to just lay it on one of the freezer shelves. Kind of clunky as it rolls around when you open the freezer door. Not a big deal, just my 2 cents worth.

I use this for monitoring a medication refrigerator so reliability is essential. The first one I purchased stopped working after a few years so I purchased a second. Now this one stopped working only 8 months later. I checked the guaranteed date on the back and it says 2017 so they shipped it to me long past when it's good for. Time to find something else.

Working well got vaccine fridge... like that it beeps loudly in case it goes out of range.

It works good and as expected. Easy set-up. I like that it records the highest temperature and the lowest temperature, which is one reason why I chose it. The price was reasonable with the other ones that I compared it with. I believe it was the least expense of the camp arable models. Very satisfied with this product and the shipment time was accurate with 2-day delivery.

I bought this to monitor the temperature of my outdoor freezer that lives in my covered driveway. It displays the high and low temperatures since the last reset, ensuring that you haven't had an unknown thaw/refreeze episode. It beeps when the temp goes out of your specified range, which recently saved me from losing my freezer contents when somehow the outlet got turned off. It was lucky that I just happened to be leaving the house at the time, or I wouldn't have heard it, but without I would never have know there was a problem and would have lost hundreds of dollars worth of food, or worse, unknowingly poisoned myself with spoiled, refrozen food.

This is the thermometer that I wanted. However, calibration certificate of the thermometer expires in 6 months. It would be better if it was good for at least 1 year.