Elitech Digital Temperature Humidity Data Logger Medical Refrigerator Thermometer Vaccine Fridge Temperature Monitor, RC-4HC, 10 Pack

I have been using this device continuously for a week now, and have to say I am extremely satisfied in its performance. I needed a data logger to monitor the temperature and humidity in my refrigerator, and given the cheap price and good reviews on their other products, I figured it was worth giving Elitech a go.The device itself is very easy to use. It has a single button, which you press to begin recording, and to cycle through the current, maximum and minimum temperature values on the LED display. It therefore lets me crudely monitor the conditions without having to upload all the data.The software is a little clunky, but lets you do all the essentials - configure the device, stop recording, upload the data from the device, and erase memory. I have found it more useful to use my own scripts to analyze the data, but the pre-packaged software does let the non-programmer visualize the temperature and humidity over time, and zoom in to get a closer look.The biggest issue I had with operating the device, was identifying which driver to install for my mac. The instructions were not immediately apparent, and it was only when attempting to install the python module that I came across the solution. I installed both the CP210x USB-UART bridge VCP driver and the CH340 Serial Driver, and it was only after installing the second that the software was able to recognize the device.I have not had any issues yet with operating it continuously at 0-10°C (and once briefly below freezing). Once I have satisfactorily monitored all the different regions of my fridge, I may be daring enough to throw the thing into the freezer and see how it fares. But I know that batteries and sub-zero temperatures are not good friends, so don't have high expectations.

I bought this to determine temperature rise in a heat exhaust system for equipment at work. The goal being to reduce the airflow to minimize conditioned air volumes.The datalogging and accuracy are fantastic. Set it and forget it. Download the data into graphs, etc.

Bad: Not that much bad stuff, actually.> Cannot set up or start/stop logging without a computer connected> Product data says the computer is just Windows (see below)> Not ideal as a temperature monitor, as the display times out after a few secondsGood:> Worked out of the box, after putting in the battery> Elitech download site has a Mac version! It's compatible with my MacOS 10.14.2 laptop. No bugs either - I made a few changes (turn off logging and enable button stop/start, change to F from C) and they showed up in the device after I hit Save on the laptop.Note: The download file description is deceptive: for USB interface, you do not need to load the driver (an odd thing on a Mac anyway). Just run the app, and it finds and talks with the device. It may require that driver for serial interface, but that's not what I needed anyway.I would definitely buy again. I'm a HW/SW engineer, always impressed by good performance and trouble-free software - especially at a very fair price.It worked immediately

This small device is excellent at recording and charting the temperature, either stand alone or with probe attached. You can program alarms for out of range temps, set it to record at intervals needed, up to 16,000 samplings recorded! You can even set a delay before recording. Rechargeable internal battery. Convenient USB data/charge connection, and the application is very easy to use and understand. It's hard to believe this very accurate scientific device is so AFFORDABLE!I use it to verify the temperature of probiotic yogurt I incubate. Turns out my 'cooker' runs a degree or two high so I now know I need to set it lower accordingly.I am SO GLAD I thought to choose this one!

The product works as long as it is plugged into a USB port. When you disconnect it from the USB port, it will take about 3 temperature measurements and then quits working. The software is circa 1990's style and certainly NOT user friendly. Reminds me of an old home brew MSDOS program (the default installation directory is Root). The English documentation is scant at best, and written at about the U.S. 4th grade level. It takes awhile to figure out how the product and software work, and the documentation itself will not help much with that. After 2+ weeks of trying to get this product to work I'm returning it. Don't waste your money.

This thing is great! I was fairly easy to use and set up. It is giving me all the information I wanted and more. The plastic seems a little weak, and the battery compartment could close better. Over all a good value for me. I have been using it for getting data on my fridge, freezer, and deep freezer. It has let me set them to the proper temperature and save energy. I have also been testing ways to pre-chill my cooler/ice chest, and my work lunch pail to see the temps.Over all it works as intended, no complaints, I would recommend this thermometer!