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Description
MAJ MT643K Type Temperature Data Logger K Type Temperature Data Logger Overview The MT643 is a K Type Temperature Data Logger and measures and stores over 32,000 temperature readings from 200C to +1370C. With its precision calibrated internal temperature sensor, all the user has to do is place the logger in the field and leave it until the desired information has been recorded. The user can easily set up the logger and view downloaded data for analysis by
K-Type Temperature Data Logger
K-Type Temperature Data Logger
Overview
The MT643 is a K-Type Temperature Data Logger and measures and stores over 32,000 temperature readings from -200°C to +1370°C. With its precision calibrated internal temperature sensor, all the user has to do is place the logger in the field and leave it until the desired information has been recorded. The user can easily set up the logger and view downloaded data for analysis by plugging the data logger into a PC’s USB port and using the free software. Displays all status information through two LED’s, and where user defined minimum/maximum values are exceeded, and alarm LED will flash. Selectable measuring cycles can be set up from 1 second to 12 hours.
Features
- K-Type -200° to 1370°C
- 31 808 Data storage points
- Battery life: more than 3 years
- USB interface
- Alarm display
- Software
- Selectable measuring cycle: 1s, 2s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1hr, 2hr, 3hr, 6hr, 12hr
Accessories:
- 3.6V Lithium Battery
- K-Type Temperature Probe
- Software
- USB Built in
Specifications
| Channels |
Single |
|---|---|
| K Type |
-200°C to 1372°C |
| K Type accuracy |
±(1%) |
| K Type resolution |
0.1°C |
| Temperature Ranges |
°C, °F |
| Sample Rate |
1,2,5,10s,1,5,10,30m,1,2,3,4,12hr |
| PC interface |
USB connector to PC Port |
| Min Max Ave |
Yes |
| Over-range indication |
Yes |
| Digital Display |
None |
| Data logging |
31808 Readings |
| Low battery indication |
Yes |
| Enclosure |
Moulded |
| Power source |
3.6V Lithium |
| Dimensions |
101 x 24 x 21.5mm |
| Weight |
172g |
Downloads
Additional Information
| Device | Data Logger |
| Type | K-Type | Temperature |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
I’m glad they made these.
Size: One Size
Bought these because I work with Klein tools and for the typical “where did you get those?” Or basically an excuse to talk about how cool I am for owning these. Highly recommend.
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Reviewed in the United States on June 1, 2021
★★★★★ 5
For any electricians gift bag
Size: One Size
I mean. What else could you expect from a great tool company. A sturdy, c
Well crafted set.
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Reviewed in the United States on July 4, 2019
★★★★★ 5
opens bottles!
Size: One Size, Style: Bottle Opener
This bottle opener is very cool. It’s like a screwdriver, but it’s really a bottle opener! It has a grip to prevent your hand from flying off while opening a bottle. I also carry a bottle opener on my keychain and am always especially proud when someone needs a bottle opener and I have on right there on my keychain.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Great bottle opener
Size: One Size, Style: Bottle Opener
Love this bottle opener. Looks and feels just like the screwdriver. Easy to grip just like the hand tools. Good gift idea for the electrician or a diy person that appreciates quality tools.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Great bottle opener and looks cool too
Size: One Size, Style: Bottle Opener
Love this opener. Matches with all the other screwdrivers in my tool box and have it ready to whip open a beer whenever needed. Slips into the pocket to carry with you as well. Solid tool and I gave a couple buddies one as a gift. These will see many years of beer opening super fast.
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Reviewed in the United States on November 9, 2025