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Description
MAJ MT669Temperature and Humidity Data Logger Temperature and Humidity Data Logger Overview The MT669 is a Temperature and Humidity Data Logger with a high accuracy temperature and humidity sensor. This data logger provides fast response and stability. This logger gives clear readings on the large LCD display and the user can check at a quick glance the actual time of the minimum or maximum reading for temperature and humidity. The MT669 has a selectable
Temperature and Humidity Data Logger
Temperature and Humidity Data Logger
Overview
The MT669 is a Temperature and Humidity Data Logger with a high accuracy temperature and humidity sensor. This data logger provides fast response and stability. This logger gives clear readings on the large LCD display and the user can check at a quick glance the actual time of the minimum or maximum reading for temperature and humidity. The MT669 has a selectable measuring time intervals from 1 seconds to 24 hours and can store up to 16,350 readings for both temperature and humidity. The user can define the upper and lower measurement parameters for temperature and humidity and if these readings go above or below these parameters, the alarm LED will flash.
Features
- Total data storage: 32 700 Readings
- 16 350 Readings for each temperature and humidity
- Temperature -40°C to 70°C
- Humidity range 0% to 100% RH
- Selectable measuring cycle: 1s to 24hr
- Multi-mode to begin logging
- Analysis software
- Lockable wall bracket
- Alarm function activated when set values are exceeded
Specifications
| Weight |
115g |
|---|---|
| PC interface |
USB connector to PC |
| Sample Rate |
2,5,10,30s,1,5,10,30m,1,2,3,6,12,24hr |
| Relative Humidity |
0 to 100%RH |
| Power source |
3.6V Lithium |
| Over-range indication |
Yes |
| Dimensions |
94 x 48 x 33mm |
| Min Max |
Yes |
| Low battery indication |
Yes |
| Digital Display |
LCD |
| Data logging |
32700 Data points in total |
| Enclosure |
Moulded |
Downloads
Additional Information
| Keywords | major tech, MT669, thermo-hygrometer, temperature & humidity data logger |
| Device | Data Logger |
| Type | Temperature and Humidity |
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
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Good Material
Color: Brown, Style: Modern
Great WALLET!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 4
New Artpaxy wallet
Color: Black, Style: Retro, Color: Black, Style: Retro
Too soon to tell. Does hold All my cards. good looking wallet. However, once all cards are in place, very stiff and thick. As I said, Time will tell. Hope it will soften with use. Saved my old one ...Just in case. Patty
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Reviewed in the United States on February 2, 2026
★★★★★ 5
I expect to be using it for years
Color: Brown, Style: Modern
Very well made product. It matched the description in every way. It is still a little stiff but I know it will stretch into a comfortable use product because that is how leather is.
Why did you pick this product vs others?:
I liked the retro look that was offered
Card capacity:
including hiden pockets there are 13 as described.
Comfort:
nicely smooth and fits well in my pocket.
Slimness:
A smidge bulkier than expected but not a problem
Value for money:
definitely worth the price.
Smell:
I could smell the leather tanning.
Quality:
My girl friend is proud to have me produce it at the bar.
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Reviewed in the United States on July 1, 2025
★★★★★ 5
Great wallet
Color: Carbon Black, Style: Modern
Excellent product for the price paid
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Very roomy
Color: Coffee, Style: Modern
It's great. I feel secure with the RFID, the leather is soft and looks great. It has many pockets for cards so that I can spread out my cards. This makes it slim in my pocket. This is a very nice wallet; I recommend this as a great gift or a replacement for yourself.
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Reviewed in the United States on October 25, 2025