Dual Channel K-Type Thermocouple Thermometer with Two Probes and Backlit LCD

Right from the box I ran through the settings of probe type (=K), and Temp scale (=F) - very simple to do, and all settings remain as they were at last power-off.The room temperature initially read 73.4F and 79.1F, but after 30 seconds or so, they settled down to readings of 70.1F and 70.1F. Over the next half an hour, one reading or the other would briefly move up or down by +/- 0.1 or 0.2, but always returned to 70.1. During this time, I cycled the power every few minutes to see how the meters started back up. There was only a second or two of settling time with each power-up. I left the probe ends in place, close together and weighted down to the floor by a book. Handling the meter body had no effect on the readings. Unplugging and switching the probes made no difference.Comparing to my trusted Fluke 80T probe I have used since 1982 or so (and was last calibrated in 2007), the Fluke measured room (floor) temperature reading is 70.0F.Based on my experience with thermocouple probes supplied with various multimeters I own , this is extraordinarily stable and precise, as well as accurate at at least one point. This result is not something anyone should expect from a mass-produced thermocouple thermometer - especially an inexpensive one. Probably I was just lucky - but at least it shows that such performance is possible from this instrument.I plan to make accuracy tests with an ice bath and with boiling water, and tracking precision tests with refrigerants such as CO2 and with a hot air gun. I will use a variety of probes as well as the ones supplied.I think it highly unlikely that the two probes will track so perfectly over a wide range of temperatures, but this single point test is encouraging. I will update this review after I perform further testing.**** UPDATED****I did some further testing, using the probes supplied. I twisted the probe ends together so they would be in the same environment.In an ice water bath The two probes read 33.8F and 34.1F after stabilizing for about 2 minutes.In my home freezer (set for -5F), The probes read -5.1F and - 4.8F.In boiling water, they stabilized at 211.7F and 211.1F.I tried to read my oven, set to 300F, but I couldn't get a stable reading. It turns out that the oven cycles on and off fairly frequently, and the temperature swings high, then low as it does and the probes can't keep up.Manufacturing variations result in the sensing beads on the two probes being visibly different in size - about 2:1 in diameter. The larger bead is much slower to settle than the smaller bead. As the temperature is swinging up and down, the difference in readings becomes large, only settling once the temperature becomes constant for a minute or so.Probably by selecting two thermocouples from the same manufacturer's batch that have nearly identical junction beads, the probes would track well. I ordered a set of ten probes to use in that way.

works as advertised

works okay for me. Good value

My GE oven did not seem to control the cooking temperature well so I purchased the Type K digital probe and now I can adjust my oven to the exact temperature required. Accurate (I checked the instrument at boiling and in ice water) and it works great.

I was looking for a relatively inexpensive temperature gauge where I could monitor line set temperature on AC systems. Add a set of clamps to the setup and it is super-easy to use. The price is good and it works as designed. It is easy to switch between Centigrade and Fahrenheit, so it is easy to adapt to your needs. Recommended product and company.

Worked ok for a while. Then one of the socket's friction contacts for the thermocouple got loose so the thermnocouple has to be taped in place or it falls out. And it frequently does not make contact even when plugged in, then the display goes to all dashes for that thermocouple. Low quality connector jack.

The media could not be loaded. The device was accurate and detecting the temperature of my kiln because I tested it with a digital kiln. I need this device for my jewelry kiln, which does not have a temperature setting. They need to rethink the thermal couple input because the plastic melted onto my artwork and it’s not washing off. So technically It ruined a plate. I spent four hours on painting and it’s not even finished.

Appears to be accurate and give reproducible temp reading using different probes. Pleased with purchase. No regrets at all!