Thermocouple Thermometer, RISEPRO 4 Channel K Type Digital Thermometer Thermocouple -200~1372°C/2501°F Sensor HT-9815

A really nice instrument for the modest price. Calibration is not traceable to NIST or any other standard I am aware of. It works fine for candy making, baking, brewing, smoking, grilling, incubators, and refrigerant measurements. Which are the uses I need it for. If you are trying to prove net energy release from tabletop cold fusion, maybe get something calibrated to a recognized standard. Comes with four basic type "K" bare bead thermocouples. The supplied thermocouples have polymer insulation, so not great for much above 230 degrees F. for extended periods. The supplied thermocouples do work fine for refrigerant line measurements. I bought inexpensive bare bead thermocouples with ceramic insulation, that easily withstand my 550 degree bread oven. A probe with a pointed stainless steel tube is nice for grilling, and similar baking, brewing, type purposes where you insert it. One problem will miniature type K, thermocouple connectors (The little 2-pin yellow plugs) is they tend to get lose with use, especially if you accidentally force one into the receptacle backwards. Nice handy instrument, with a quality look and feel.

Wow! 860 degrees Fahrenheit while using the self-cleaning cycle of our Frigidaire Professional gas range. (Per an undocumented search on Google, the cleaning cycle should max out at 900 degrees. Note: to do this test, I used a separately purchased $10, K-type thermocouple with alligator clips .) I'm giving this 4 stars because the instructions lack sufficient details to be helpful, the readings take time to stabilize, and are somewhat inconsistent. But, for the price, and the results below, I am happy with my purchase. The 4 included thermocouples appear able to read a normal oven of say 350 degrees F, or go right into the freezer. They show that water boils at about 202 degrees F in Denver, but ice water is right around 32F. While the combination cannot compete with the likes of Fluke meters, for a quick check on our outdoor gas grill, or indoor oven, this appears to be respectable and useful. This addition to the digital thermometer permits clipping to the interior of the oven or gas grill and provides a higher maximum temperature exposure. The other standard leads confirmed that the adjacent cabinets remained safely cool if the doors were kept open. I have discovered that the reading appears to be influenced by several factors including: ambient temperature of the total cable, total time that the thermometer has been "on", and the effect of cycling the thermometer on and off.

very well constructed, this is an excellent device, I changed the actual thermometer probe, the one provided are only accurate to 200 degrees cel, I purchased a better grade probe to use in a coffee roaster, and it gives very accurate readings, the new probe is easy to use in the roaster, I have got very good results roasting coffee beans. The only negative is the device turns itself off after ten minutes but not a deal breaker

Do not bother with this, there is zero precision and will give wildly different, inconsistent readings every time. Using the probe and connecting to different channels will result in temperature readings that were wildly different each time. Disconnecting the probe and reconnecting it to the same channel, while in contact with the same constant heat source would also keep changing the temperature up or down each time. There is no consistency or accuracy with this. You will never get an accurate temperature reading to be useful for anything. I was hoping to use the temperature probes to get a simultaneous reading of a hot object's surface, vs the reading of the ambient air temperature, so that I could monitor the delta as cooling was applied. This device's inaccuracy made sure that it would never be possible and every result would be meaningless. This is not an instrument, it is a gimmick device that can barely perform with It is advertised as +/-1C accuracy at >100C and +/-2C accuracy at <100C. This thing is more like +/- 4C, or +/-10F, which is too huge of an error margin to be useful for anyone.

I am a Deputy Fire Chief, and purchased this multi-channel thermocouple thermometer to use in a fire training event. We constructed a small model of a building to demonstrate fire behavior and ventilation impacts. The “building” has 4 “rooms” and an attic. The lead instructor thought it would be neat to be able to measure the temperature in each compartment as part of the demonstration. A brief search on Amazon led us to this item. The reviews were decent, though several indicated an innaccuracy of 10-15F. With our use, and the temperatures we would be measuring, we decided that was perfectly acceptable. For the less than $40 price (in March of 2023), it seemed worth the try, and the return policies minimized the risk. Overall, I am very impressed, and so were the firefighters. Having the simultaneous temperature for all 4 compartments added a significant piece of understanding to the demonstration. We reached temperatures of over 1,500F during the experiment, and the thermocouple leads survived. I did not expect that at all. The unit is simple and easy to use, setup was quick, the tester is rugged, ergonomic and durable, the leads clearly hold up to high temperatures, and the display is clear. My only complaint is that the leads are pretty short, around 3 feet or so. We definitely could have used 2-3 times that. I don’t recall the lead length being clearly described in the listing, or I would have likely tried to get longer ones. The good news is if you want longer, higher temp ratings, or just replacements, there are plenty of other leads available. Certainly not a precise scientific instrument, it doesn’t meet any real calibration standards, but in our experience it worked very well for our amateur application. I’ve included photos that show temperature readings at different times in the demonstration, the thermocouples post-demo, and the burn box we used.

Does the job. The cables are not so convenient but the sensors are accurate

Excelente producto

I have two sensors together. They sense different temps. Using a probe that is water proof the water freezes at 0°C fine. The same water boils at 92 on one probe and 98 on the other. Rolling boil shoild be 100° Mash temp for beer at 152 using a calibrated thermometer reads 152. This junk reads 150 and 146 on two probes litterallu tied together If I turn it off for a minute but keep probes in place at a stable temp when you turn it back on they read more than 30°C out then takes 15 minutes to get close but never gets to the actual temp. There seems to be no means to calibrate either

Not happy on this product, second time trying, new batteries but for some reason these numbers are right off T1 says 7.3°C but it’s in -10°C solution and I know it’s -10 from the PLC T4 is in a hotter solution my PLc says it’s 57.2°C not 43.7°C, Not happy please email me this is unacceptable!!