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🌡️ Stay ahead of the heat with Fluke’s dual input digital thermometer — precision that professionals trust!
The Fluke 52-2 is a rugged, dual-input digital thermocouple thermometer designed for industrial applications ranging from freezers to furnaces. It supports Type K, J, T, and E thermocouples, measures temperatures from -40°C to +260°C (-40°F to +500°F), and provides real-time min, max, and average readings. NIST-certified for accuracy, it’s powered by 3 AA batteries and built to endure tough environments, making it the top choice for professionals demanding reliable, precise temperature monitoring.








| ASIN | B00012Z124 |
| Additional Features | Digital |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #109,439 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #43 in Lab Digital Thermometers |
| Brand | Fluke |
| Brand Name | Fluke |
| Customer Reviews | 4.5 out of 5 stars 73 Reviews |
| Display Type | Digital |
| Global Trade Identification Number | 00095969071338 |
| Immersion Depth | 4E+1 inches |
| Included Components | Fluke - Thermo Cupler (52-2) |
| Indoor Outdoor Usage | Indoor |
| Item Length | 5 inches |
| Item Type Name | Tester |
| Item Weight | 300 g |
| Manufacturer | Fluke Corporation |
| Model | 674689 |
| Model Name | 52-2 |
| Number of Batteries | 3 AA batteries required. (included) |
| Outer Material | Stainless Steel |
| Part Number | FLUKE-52-2 60HZ |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Resolution | [0.1°C, 0.1 K < 1000; 1°C, 1 K ≥ 1000] |
| Response Time | 60000 milliseconds |
| Reusability | Single Use |
| Special Feature | Digital |
| Specification Met | NIST |
| Style Name | 52-2 |
| UPC | 501946093335 095969071338 |
| Unit Count | 1 Count |
| Upper Temperature Range | 1600 °F |
C**S
Great product
I have long looked for a decent thermocouple with two inputs and this was it. I purchased 5 different ones in just slightly over a weeks time and returned all besides this one. I figured if I was going to spend $200+ I might as well have the cream of the crop. The Fluke 52-2 works perfect. The temps update quickly and this thing is very rugged. I have dropped it once or twice and it didn't even leave a mark. I even knocked over a thermos with liquid nitrogen in it and it didn't bother it at all. If you are looking for the best Fluke is the way to go.
J**R
Great thermometer
One of the best thermometers I ever bought if not the best, reads quick and accurate, as a refrigeration technician it really comes in handy to double check temps on cases and check for other measurements on oil system for example, all depends on how you wanna use it, although pricey but better than the Fieldpiece dual thermometer.
D**B
Great Product High Price
As I expected, the Fluke meter is flawless. It is too bad they are so expensive. If they were more reasonable, I would recommend them for everyone.
M**.
Great!
It measures temp accurately, for the proce it should at least have a pouch tho.
J**B
Quality Fluke Product
Fluke meters are had down the best on the market. True readings, each and every time. Robust cases keep them safe. Have been using in commercial / industrial setting regularly for years without issue.
M**C
Severely damaged packaging.
Product was shipped with batteries installed. I believe it was used, advertised as new. Packaging was damaged during shipping. Didn’t even bother using. Returned next day.
B**M
Best temp meter for HVAC!
This has been the most accurate temp meter I’ve used in 15 years of HVAC work. I have one and two of my installers/techs have them and I struggle to trust anything besides these. It’s hard to beat this price and the shipping was super quick.
B**L
Low quality.
Ordered one of these for the lab, most of the time chemists just order whatever is cheapest but I thought I would go with the quality meters. Mistake. This meter has a built-in issue, if you need to measure several temperatures at the same time go with something else - this one has severe temperature fluctuations (+/- 8C) when two thermocouples are plugged in at the same time. I thought it was a defective unit, sent it back for a replacement - the new one is exactly the same. Should have gone with the cheap companies if I wanted to deal with junk. Two stars because technically each of the thermocouple slots work individually and are accurate enough to use when singular, so don't buy the dual thermocouple, just buy the single and buy a few thermocouples.
E**N
Glad to finally have it
Didn’t know how I did refrigeration without it
J**I
Excellent meter
Excellent meter. Quality build. To be expected from Fluke. Shipped fast and was as expected.
Trustpilot
3 days ago
1 month ago