A. Lai—December 17, 2025
Very nice 2-in-1 thermometer. It is easy to use and accurate! Its two functions are exactly what I need for my Blackstone griddle - The IR to measure the surface temperature of the griddle so I know when to begin, the probe to measure the internal temperature of whatever I'm cooking so I know when to stop. The unit is well built and easy to use and see (it has a nice backlight on the display). The unit also has a magnetic back - the magnet isn't super strong, but it is good enough to make sure the thermometer doesn't slip off the metal work surface on the side of my grill and fall on the ground. (I just wouldn't recommend using the magnet to hang the thermometer off the side of the grill - it tends to slip a bit when you do this.) Read more
Beevan—June 23, 2025
Trying to understand why you keep burning your eggs on the griddle? Don’t know why your pancakes are black charr on the outside and liquid batter on the inside? It’s because you aren’t managing the temperature on your griddle correctly. This little tool will help you do just that. If you wanna sear a steak or get that perfect crisp on your smash burger - you need to know at what temperatures you are operating your griddle. This handheld tool will let you do this without touching the heat. All the user has to do is aim it at the surface and get an instant reading on the screen. This device has a backlit screen, easy to use interface (switches between F and C degrees easily), and has a convenient auto shutoff at 90 seconds. The attached meat probe is yet another added benefit. Overall this device is hefty, and will last if taken care of. The package coming with batteries for immediate operation is a plus. If you need one of these for your griddle times - look no further, this is the one. Read more

Jon Fox—August 16, 2025
First one like this I have ever bought. I bought one of these from another place first and really liked it. I bought this one for my brother in law as he had tried a couple and did not have good luck with them. I like it has the probe temperature and the ambient temperature. Can but used for the cooking temperature easily and the griddle temperature without having to have 2 different ones. Bought it because I got a Blackstone and recipes kept referencing griddle temperature so I needed to know that. Been great for me. Good value for money in my opinion. Like the magnet back so it will stick to the side trays and not get knocked off. Reads the temperature very quick. Read more
Steven—October 28, 2025
I previously had a Thermapen IR by ThermoWorks (gonna call it "TIR" going forward) but I accidentally dropped it in a sink full of water which fried it immediately. I tried contacting support and they had me send it in, but ultimately they basically told me to pound sand and get a new one. I didn't want to drop another ~$175 so I figured I'd give the TP420 a try as there are very few options that have both a probe and IR (both of which I use constantly!) In many ways I like the TP420 better. It has a backlight (TIR doesn't), it can take a running average temperature (TIR can't), and the probe/infrared act totally independently. With the TIR it's one or the other, and it was often finicky because it wouldn't register the probe being closed so I'd have to squeeze it tightly to use the IR function. Also, the TIR costs ~$175 while the TP420 costs less than 1/4 that (as I type this). The built-in magnet on the TP420 is also a nice touch. Really, the only few things I like better about the TIR is that it looks sleeker and it turns on when you deploy the probe, with the TP420 you have to press an "on" button, which is nit-picky, but I do like the immediacy of the TIR. The TIR's probe is a bit faster, however, ThermoWorks prides themselves on how fast their thermometers are and the TP420 is no slouch. The TIR realistically takes 2-3 seconds and the TP420 is more like 4-5. It's just enough to be noticeable, but not enough to make much difference unless you regularly have to do many temp checks in quick succession. Accuracy is quite good! I have a latest-gen Thermapen One (non-IR version) which comes with a calibration certificate, and it along with my Anova Pro sous vide circulator agree with each other right down to the decimal, so I'm fairly confident they are quite accurate. My TP420 tends to read about 0.7 to1.2 degrees (F) warmer, which isn't enough to worry about for most applications. I definitely recommend this over the Thermapen IR I had before. Little accidents are very common in the kitchen and I'd much rather be out ~$40 than $175! Read more
Brenda—July 12, 2025
best accessory I have to use with my griddle. You can shoot the surface temperature and use the probe for inside temperature at the same time. has a meat wellness guide on the back and is magnetized to stick on your grill, so you know where it is at all times. Read more
Burnie—November 11, 2025
I like it has a probe and infrared to read temps. I can measure the temp of the griddle and then the temp of the meat on it. A must have for cooking. Read more
Don Evenson—October 31, 2025
I love this tool. Didn't realize it when I bought it, but it has both non skid pads and magnets on the bottom so it stays put on the counter or side table of the grill. Bought one in my summer house and bought another one the day I got to my winter house. Use both the infra red setting frying pan temp (omelets turn out much better if you fry at exactly 275 degrees) and probe for internal temp of meat. Read more
Lisa L Waring—November 9, 2025
Great thermometer! Super easy to use. Read more