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Description
UNI-T UT381AIlluminance Meter, Range: 0~400000 lx, Resolution: 0~99. 99 lx (99. 99 fc), MAX MIN AVG, Data Hold, Auto Power OFF, Backlight, Bluetooth APP, Data Record: 99 Sets, Real Time, 235x64. 5x39. 8mm Illuminance Meter Overview UT381A is a safe and reliable digit light meter with wide range measurement, widely used in lighting applications, laboratory, office, street lights construction, commercial venue and others. Features Wide measurement range, 0~400000
Illuminance Meter, Range:0~400000 lx, Resolution:0~99.99 lx (99.99 fc), MAX/MIN/AVG, Data Hold, Auto Power OFF, Backlight, Bluetooth APP, Data Record:99 Sets, Real Time, 235x64.5x39.8mm
Illuminance Meter
Overview
UT381A is a safe and reliable digit light meter with wide range measurement, widely used in lighting applications, laboratory, office, street lights construction, commercial venue and others.
Features
- Wide measurement range, 0~400000 lx
- Probe of integrated, split and rotatable design
- Data storage
- Bluetooth APP connection supported
- Color Correction Coefficient(CCF)
- Real-time display
Specifications
| Specifications | UT381A | |
| Certificates | CE, UKCA, RoHS | |
| Resolution | 0~99.99 lx (99.99 fc) | 0.01 lx (0.01 fc) |
| 100~999.9 lx (999.9 fc) | 0.1 lx (0.1fc) | |
| 1000~400000 lx (37160 fc) | 1 lx (1fc) | |
| Accuracy | ±3% calibration as per standard light source when in 2856K. | |
| ±6% calibration as per other visual light source. | ||
| Unit Switch | lx、fc, 1fc=10.764 lx | |
| Auto Range Switch | Yes | |
| MAX/MIN/AVG | Yes | |
| Data hold | Yes | |
| Color Correction Coefficient（CCF） | Yes | |
| Backlight | Yes | |
| Bluetooth APP | Yes | |
| Data Record | 99 sets | |
| Record Interval | 1~59 seconds | |
| Measuring Methods of Probe | Integrated(rotatable)、split design | |
| Real-time | Time is automatically updated with manual setting or phone APP connection. | |
| Over-range Indication | OL display | |
| Low Battery Indication | Auto power off when low battery icon flashes for 10s | |
| Auto Power Off | Auto power off if no operation in 10 seconds. (cancelable) | |
| Battery | AAA*3 | |
| Battery Life | Over 100 hours（Alkaline batteries，Bluetooth and Backlight is off.） | |
| Working Temperature and Humidity | -10°C~50°C，＜90%Rh(non-condensing) | |
| Storage Temperature and Humidity | -20°C~70°C, ＜80%Rh(non-condensing) | |
| Weight | About 257g, not battery included | |
| Characteristic | ||
| Standard accessories | 1*Quick start guide, 3*1.5V AAA battery, 1*Strap, Safety instructions, gift box | |
| Power | 3*1.5V AAA battery | |
| Product size | 235*64.5*39.8mm | |
| Product net weight | 257g | |
| Standard quantity per carton | 5pcs | |
| Standard carton size | 395×290×160mm | |
Downloads
Additional Information
| Device | Meter |
| Type | Illuminance |
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
4.5 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Good overall
Color: White, Size: Standard (Pack of 2)
Bought these for our guest bedroom. They are quite overstuffed, so if you like full pillows this will be your thing. As such they are dense and firm. The height is a bit much if you are small framed, but are comfortable overall and stay cool enough to be nice in the summer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 5
Finally Found Pillows Everyone Loves
Color: White, Size: King (Pack of 4)
I LOVE these pillows. I bought the king-size set and ended up liking them so much that I want them on every bed in the house.
They’re soft but still supportive, and they actually work for different sleeping positions, back, side, and stomach sleepers. They don’t go flat, but they’re also not overly stiff, which is such a hard balance to find. I throw them in the washing machine which makes them super easy to wash! The size is true to King!
They feel cool and hotel-quality, and the down-alternative fill is great if you don’t want real feathers. I wake up without neck pain, and they keep their shape night after night.
If you’re picky about pillows (like I am), these are absolutely worth it. Comfortable, affordable, and a great value for a set of four.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
★★★★★ 5
Feel perfect, not too soft and not too hard.
Color: White, Size: Queen (Pack of 4)
Incredibly perfect pillows. They feel not firm nor too soft but just right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Comfortable
Color: White, Size: Queen (Pack of 2)
Omg! I love this pillow. I have a hard time finding pillows comfortable, this is the best pillow I’ve purchased. Definitely worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 5
Comfortable.
Color: White, Size: Queen (Pack of 2)
Comfortable. Good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
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