Thermocouple Thermometer Data Logger 4 Channels Digital K Type Thermometer with 5000 Groups Programmable Temperature Recording -328~2501℉ Measuring Range, Audible & Visible Alarm ADJ Compensation

One of the thermocouple was not working. And amazon is not letting return the item.

J'ai été très heureux de trouver ce thermomètre électronique à deux canaux, surtout à ce prix très raisonnable. Outre le fait de pouvoir mesurer deux sources chaudes séparément, c'est pratique de pouvoir effectuer la mesure principale avec la température ambiante en référence. Ce que je considère comme une chose très importante, c'est que l'appareil soit livré avec 4 sondes à thermocouples, 2 sous formes de sondes pour l'air, les gaz ou les liquides, et 2 avec des thermocouples ponctuels permettant une prise de mesure très précise sur un point très petit et très localisé, ce qui est précisément mon cas en mesurant la température d'un fil chaud porté "au rouge". C'est vraiment un excellent appareil et je suis très satisfait de cet achat.

I purchased two of these data loggers for a project and two other four channel loggers of a different manufacturer (the gray ones you see on Amazon). I prefer the other units; however, these are good if you understand the limitations and are certainly a good value considering the features at the price point.My application was stand alone data logging in a reasonably warm environment (110 degrees F), so I didn't want to use a laptop - just the data logger. You can program the unit without a computer and the user interface is relatively intuitive, but you'll still likely need the user manual. These units display the temperature while recording which is a nice feature that other similarly priced data loggers do not have. You can review data from the data logger after recording is complete; however, you must download software specific for this product in order to extract the data into a file which can be manipulated/plotted in a spreadsheet. I recorded for about 8 hours and had adequate battery life and data storage; however, at the conclusion of my test I was disappointed to find that there are no time stamps when logging data with the stand alone unit. I contacted the manufacturer/supplier (who has excellent tech support and response time by the way!) and they confirmed this was a limitation of the unit. You must connect to a computer when data logging with the supplied USB-C cable to time stamp data - bummer. If you note the time when you start recording you can backfit time stamps to recorded data, but this is an extra step and an opportunity to make a mistake.Of the two units I purchased, one malfunctioned almost immediately, with sporadic swings of indicated temperature. I took the time to contact the manufacturer for tech support and they were fantastic. This is the reason for the five star review. The time delay on responses indicates to me that tech support is not coming from the continental USA, but that's to be expected. Tech support suggested that I was experiencing electrical interference due to taking measurements near a large AC generator; however, upon following their suggestions and testing the instrument in other environments we concluded that I had a defective unit. They quickly shipped out a replacement which works well.The software is a bit clunky, but it's functional. I had to fiddle with identifying which USB port number to connect to the device. Search on the internet - there are plenty of how-to videos about using the software to extract data from this device.I don't use these as much as the other units I purchased primarily because they don't save time stamps with the data sets when used as a stand alone logging device and because they require downloading software to extract the data; however, for the price they have great functionality. The supplied thermocouples seem to be of good quality and provide repeatable data. I've used these with custom type K thermocouples with good results as well.If you need to see the temperatures when you're logging and you don't care about time stamps, these are a good buy.

A good product which tested well when compared to other calibrated thermometers on a simple home test.Very good value for this level of accuracy.We only need this as an indication of temperatures, so good that it is close to our proper industrial thermometers that we pay many hundreds of pounds for.Will be interesting to see how accurate they stay over time, and with calibrated thermocouples.

Provato con molto scetticismo ma poi comparato con uno strumento certificato utilizzato per lavoro e fatte le opportune minime correzioni (anche se potevano essere evitate) posso dare solo 5 stelle a questo prodotto. La retroilluminazione solo quando serve permette una lunga lunga durata delle batterie. 5 stelle meritate

Ich habe das Thermometer geholt um die Bodentemperatur von einigen Pflanzen zu prüfen und dafür ist es sehr gut geeignet. Habe auch eine T-Sonde dazu geholt und es funktioniert einwandfrei.