Thermocouple Thermometer Digital K Type Thermometer with 4 Thermocouples, -328~2500℉ Measuring Range HVAC Dual Channels Temperature Meter Gauge with LED Backlight & ADJ Compensation

This worked very well for determining my kiln temperature through the peep hole. I did upgrade the probe to a ceramic one with a longer wire extension. For my purposes, I did not need to set an alarm or keep track in an app, and for the price, this worked great. (K-Type Thermocouple Ceramic Kiln Probe High for temperature Sensor 2372°F/1300°C Measurement Range 7.5 Inch Length with 3.3ft Wire Extension for Digital Thermometers and for temperature Controllers)

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.

Good little device. The PC program to see the measurements can be better. It shows everything nicely, but after you save the chart and later try to open it again, the program crashes.

Great purchase! I ve been testing it for a short time, but it seems to have a good performance. The software is awfull. I still need to test the datalogger function and the battery consumption.

This unit does not have data logging. I’m using it to monitor kiln temperature. I purchased a kit (separately) to remove the need for batteries and it still powers off after about 8-12 hours. I feel this may either be defective, or lack of transparency by seller. Not a big issue if someone is using it to read the temperature, however since my intention was to track and analyze the data on my computer, I can’t do it with this model, which is why I bought it in the first place. Ideally, if this product did what I thought it was supposed to, it could track my whole firing schedule (12-24 hours), however disappointed because it’s essentially a steel tipped laser pointer thermometer. I’ve used the current set up to monitor greenware up until the lower limits of the quartz inversion stage with the capabilities by the thermocouple that came with the product, and cones the rest of the way. I’m waiting on a porcelain encased, platinum rhodium tip k type probe, but may consider refunding this unit due to its limited functionality for my uses in the meantime.

It kept me up-to-date on the temps works great

Just as described

Device: decent build. Great display. Viewing data points on device handy. Can read data while recording. Date and time cannot be set in device, you will need to make a note of when you start recording. Software: looks and feels like its from 1995. Defaults to celsius; change units in right hand side prior to importing data. Live data recording is handy. Exporting table to excel nice BUT it includes the degrees symbol, which makes using the data hard. HINT: use =substitute function to remove degrees and then use =value function to turn it into a number. Youll essentially have to build a template to copy and paste exported data to in order to use it. It is dumb you have to do this to use the data and i have removed a star just because of this. Getting this device to communicate with COM ports is tricky. Youll need to enable COM ports in the device manager under legacy software. Once thats done youll notice when you plug it in a port appears with a "!" on it. This means it doesnt have the correct driver. Google search "CH341SER" and the first link will bring you to a downloadable file. Download file. Then go into device manager and manually update driver for this port while device is plugged in. Search that downloaded folder and computer should pull drivers it needs. Should work after that. Function: instructions are missing info. Doesnt talk about calibrating and using adjustment feature. My understanding is you can adjust each channel by whole number degrees to calibrate it. Boiling water would do the trick. Note that calibration technically depends on length of wire. Wish the time intervals were better; it goes from 1 minute to 30 minutes with no way to change it (10 would be nice). This gets annoying cause it only can store 5000 points... so at 1minute thats almost 3.5 days.

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.

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.

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