ATTPC3 Pipe Clamp K-Type Thermocouple adapter, HVAC Temperature Probe for Clamp Meters, Surface Thermometer for Boiler and AC Line Temperature Readings

Since others noted it is fragile - I have been very delicate with it and it has held up well. I have taken pains not to spill any liquids on it that might make the plastic brittle. I was able to easily get superheat with this clamp at a bargain price. Next year when I drag it out - if it breaks with time I will update the review. Until then I consider this a good rarely used purchase for doing HVAC work.

I priced out someone coming to recharge our system versus me buying the tools and doing it myself. I already have a meter that I can use this with... and once I had all tools in hand it took 15-min to get the system charged up and back in order. I did buy two different clamps... the other had a weak handle and I did send it back...this one is much better made.

Two thermal clamps were purchased. They are being used in HVAC applications. I tested both of them on the same pipe and they were less than a degree apart (.6 degrees F). I also tested them against a bead thermocouple with the same result. I also tested them in ice water along with the bead thermocouple and all temperatures were within a degree, same as before. As far as durability, I have only had them for a month. Clamps are well constructed.

I was always careful with it since it’s plastic. I’ve always had it stored in my veto tech mc tool bag. Never beat my tool bag either, after about a half year of daily use it cracked at the hinge point. It still works, holds tension and clamps onto line set like normal. Bought it because it seemed good for the price. Every other similar one was way more. Going to price shop and I may just get another. 4/26/23 Today it broke on me in the earlier part of the day. Luckily I had another clamp and I was able to get by for the day. Of your crafty you could easily rig this to something simple like a clothesline hanger spring and have it clamp and still take temps.

works great !!!

Pretty inaccurate. Tried using with a Fluke 116, Fieldpiece SC440, and a Klein meter. All three meters read way off with this sensor. As in about 11-20 degrees off. When using any other sensor (Fluke, Fieldpiece or Klein temp thermocouple) swapping sensors between all the different meters,all read accurate no matter what meter they were paired with. Using a big glass of ice water, and letting the sensors sit for a long time the Fieldpiece and Fluke both read at 32.0, and the Klein was about 33. This clamp sensor was at the closest, 41 degrees. Anywhere from 41-50 depending on the meter paired with. Yes it sat for a long time, about 30 minutes totally submerged in ice water. Is was totally cold soaked. This is obviously unacceptable accuracy for pretty much anything, let alone measuring line temps. Maybe I got a bad one, who knows but I'll have to return it. The pics attached show cold soaked in ice water, and then attached to the exact same spot on a cleaned and polished refrigerant line, blocked from the sun or any external variables, and sitting for quite a few minutes to stabilize.

This unit works quite well with my meter and has a fast response. it works with the min/max function on my meter. It grabs copper pipe quite well from the suction side to the high pressure and liquid lines in my HVAC training at RSI. lastly its not cheap china crap, good out of the box.

So I own a Fieldpiece meter and have always bought the Fieldpiece clamp. I would buy one every year because it would break under stress due to the heavy duty spring. Few years back I bought the UEI pipe clamp and never had any problem. I only bought a new one to replace my old one that was stolen. As for the review with a guy that mention the oil getting on it from the refrigerant hoses, perhaps you would like to do like the rest of us Professionals and remove your clams and other tools before disconnecting a refrigerant. hope this helps

Works awesome, fairly accurate, paired with fieldpiece dual thermometer for checking subcool/superheat on residential air conditioning systems and light commercial. Highly recommend, no more fumbling around with prob thermometers.

Use for work. Works well. Accurate temp reading.

Works as intended. Seems to be calibrated along with the majority of my other temp probes

This product works great for what I need the only complaint I have is longevity, they tend to break at the hinge, the plastic gets weak and cracks over time

This clamp is garbage literally so inaccurate I’ve had it for about a month now and I just noticed the other week it’s off by about 20 degrees