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🌟 Stay cool, stay precise — the Klein ET05 keeps your temps on point!
The Klein Tools ET05 Digital Pocket Thermometer is a professional-grade HVAC instrument offering rapid 1-second readings across a broad -40 to 482°F (-40 to 250°C) range. Featuring a backlit digital display and advanced Max/Min, Hold, and Average functions, it’s engineered for precision and durability in demanding environments. Compact and battery-powered, it’s the trusted choice for millennial managers who demand accuracy and efficiency on the job.











| ASIN | B071JRZB49 |
| Additional Features | Max/Min, Hold and Average Functions; Auto Power Off |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #1,418 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Lab Digital Thermometers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Multi |
| Customer Reviews | 4.4 out of 5 stars 2,262 Reviews |
| Display Type | Digital |
| Global Trade Identification Number | 00092644690600 |
| Immersion Depth | 3 inches |
| Included Components | Pocket Thermometer; 2 x LR44 Batteries |
| Indoor Outdoor Usage | Indoor |
| Item Length | 6.5 inches |
| Item Type Name | Digital Pocket Thermometer |
| Item Weight | 1.4 ounces |
| LowerTemperature Range | 40 °F |
| Manufacturer | Klein Tools |
| Model | ET05 |
| Model Name | ET05 |
| Number of Batteries | 2 LR44 batteries required. (included) |
| Outer Material | Stainless Steel |
| Part Number | ET05 |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Response Time | 1 seconds |
| Reusability | Reusable |
| Special Feature | Max/Min, Hold and Average Functions; Auto Power Off |
| Style Name | Digital |
| UPC | 092644690600 |
| Unit Count | 1 Count |
| Upper Temperature Range | 482 °F |
| Warranty Description | 1 year manufacturer |
P**L
Good enough
Good for the price
J**N
Super accurate
Works well. Very accurate readings. Easy to read and use
S**.
Battery life was very short
Works as it should. Battery life was very short.
H**G
When in doubt, change the battery
almost gave this thermometer a bad review because it arrived with a low battery, but once I replaced it, it worked perfectly. I just clip it onto the AC vent and turn it on whenever I need to check the temperature. It’s fairly accurate when compared to my other thermometers—maybe a degree or two off, but still good enough. Another plus is how quickly it reads the temperature, which is definitely an advantage.
S**R
Fast response
Needed to measure the temperature of the intake and exhaust ports of my hybrid water heater to check if the compressor was functioning properly. Worked quickly to show temperatures and that the compressor wasn't working.
H**K
Klein is the last word in everything they do.
Any Klein tool is the best in class. It shows the temperature immediately and is extremely accurate. Obviously the best choice when buying a thermometer. Strongly recommended. It is also a good value. It is highly readable and very durable. The quality is very high. A great fit for any job.
B**B
Shipped with dead batteries.
I know there's a little plastic pull tab you need to pull to activate the thermometer. I have a handful of these. But got one with dead batteries. Measured 1.2 volts. Should be 1.5V. Annoying to have it arrive DOA. Have to open it up and put two new LR44 batteries in it. Great thermometer. Apparently just don't count on it to work out of the box.
D**N
Works great
No complaints whatsoever, it's a digital thermometer with hold, average, min and max functions and a backlight. The protective cover can be used to extend the length of the thermometer. It does take a while to settle and get a final reading but I feel that's to be expected and would occur with any digital thermometer. I use it for checking supply air on HVAC.
G**I
Need to replace
Because this device digit not show properly
N**V
Es lento
Pero preciso y se le ve que puede ir al bolsillo o caja con otras herramientas que no muere de contacto
C**E
Good replacement for UEI thermometers
After loosing a few UEI folding type thermometers I found theses. Yes the folding type is definitely better but they have jumped in cost by a lot. These don't have magnets in them, the higher end ones do but if you plan your use of them you do not need them. Cheap tool to add to the bag.
R**U
Excelente termómetro dígital
Excelente termómetro para lecturas de salida de aire en autos y minisplits por ejemplo
I**H
M&E maintenance engineer
Been using this for a short period ( 2 weeks I think ) and so far its impressed me. I swapped it out for my works calibrated Regin unit which costs £240, that seems to be plagued with issues regarding with water ingress around where the probes are plugged in. The Klein so far has out performed the Regin despite the cost difference. There seems to be many complaints about the belt/pocket clip, mine has been in/out of my pocket dozens of times without issue. Maybe I’m a bit more careful clipping it, but it’s been fine and I’ve had it in my pocket permanently during the 2 weeks. It’s a fraction of the size/weight of my other unit, now I carry this and a Klein 11 in 1 screwdriver which has transformed my 6 monthly temperature testing of TMV valves. I first spotted it approx 2 years ago, I wish I’d bought it sooner............
Trustpilot
1 month ago
3 weeks ago