PerfectPrime TC0521, 4 Channels Thermocouple Thermometer K,J,E,T,N,R,S Type Data Logger, USB PC & Wireless to Mobile app iOS/Android

Particulièrement facile à mettre en œuvre. Le logiciel fonctionne à merveille sur Windows 10. Un produit bien conçu. L'avenir seul dira si cet instrument franchira la barrière du temps le sourire aux lèvres.

I want to love this. Physically it's a great unit, the display is easy to read, the buttons feel good, everything feels like pretty solid quality. Accuracy looks good, and having four channels really lets you do a lot. The problem is that the software is questionable at best. Running Windows 11 on my laptop, after installing I can start up the software and immediately see that the device is connected (via USB or Bluetooth) because the readings on the "soft" device are mirroring the actual device. I can sometimes start the live readings on the chart with a USB connection and see the chart updated in real time, but if I stop and try to restart the readings or do pretty much anything, I can no longer get readings to appear on the chart. Even if I close the graph completely and start a new reading, nothing happens. Via Bluetooth, the device connects easily to the software and updates are again visible on the "soft" device, but I have never gotten the graph to work correctly. Real time readings just don't work. when I give up and hit stop after a minute or two, there is at most 1 reading (and sometimes zero), despite trying reading rates of anywhere from 1 second to 5 seconds. I thought maybe I could try something else, so I loaded Artisan (coffee roasting software) but it doesn't support this device so that didn't help. Connecting to the iPhone app went better, I could see the readings and the graph updates correctly, although the features on the app are severely limited, there's no landscape support, no ability to zoom on the graph, no way to set Y-axis intervals, etc. For the money, I feel like we should get software that works. Something that's updated regularly rather than just left to rot. The phone software's last update was 5 years ago and doesn't even support the display ratios of modern phones (not even my phone which is 4 years old!). The PC software has the distinct scent of Windows 95/98, so who knows how long it's been since they updated it; there's no version info in the zip file. I really bought this to use with software, and using the bluetooth feature. While technically using it with the phone works, I have to wonder for how long? When does the app get to be so far out of date that it's no longer usable? And why bother using the phone app when it has so few features? Since I can't use the PC software with bluetooth, there's just too many features that I can't utilize. I paid for them, but I can't use them. I'll be returning this model and looking for something else.

It does what it is advertised. Fairly accurate!

I have used this one time. A year later I pulled it out of storage (batteries were remove for storage) and one of the channels was dead, the other three were 50 or more degrees off of each other when I moved the same thermocouple around from channel to channel. Do not waste your money.

One of the reasons for the purchase of this device is that there was supposed to be a traceable certificate of testing. The certificate that came in with the unit had no certified serial number nor date of test or expiration. Worthless for my application.