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- USA
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Wintact WT1357 Digital Sound Level Meter, Range: 30dB~130dB, WT1357Features 1. Automatic calibration to ensure accuracy. 2. Automatic linear compensation: this advanced software program improves the accuracy by correcting the nonlinear accuracy of the sensor. 3. Quickly adjust the sound speed thickness and quickly call out the stored data 4. Coupling status indication: observe the coupling icon to see whether the coupling is completed. 5. It has 12 thickness measurement storage and calling functions to facilitate
Features1. Automatic calibration to ensure accuracy.
2. Automatic linear compensation: this advanced software program improves the accuracy by correcting the nonlinear accuracy of the sensor.
3. Quickly adjust the sound speed / thickness and quickly call out the stored data
4. Coupling status indication: observe the coupling icon to see whether the coupling is completed.
5. It has 12 thickness measurement storage and calling functions to facilitate high-altitude operation or field operation.
6. Sound velocity measurement.
7. The sound speed of 12 gears of different materials is adjustable.
8. Thickness alarm setting.
9. LCD backlight display.
10. Low battery indication and automatic shutdown.
11. Metric / imperial selection.
Specification
1. Accuracy: 1.5dB (under reference conditions)
2. Measuring Level: 30-130dB (A)/35-130dB (C)
3. Frequency Range: 31.5Hz to 8.5KHz
4. Linearity Range: 50dB/100dB
5. Digital Display: 5 digits
6. Resolution: 0.1dB
7. Bar Graph: 50 dB (scale at 1 dB step for monitoring current sound pressure level display)
8. Overload Indication: OVER/UNDER
9. Frequency Weighting: A and C
10. Level Ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB
11. Self Calibration Time: 3sec
12. Sampling Rate: 20 times/seconds
13. AC Signal Output: 0.707Vrms/ full bar graph, output impedance is about 600ohm
14. DC Signal Output: 10mV/dB,output impedance is about 100ohm
15. Dynamic Characteristic: FAST (high speed)/SLOW (low speed)
16. Power Supply: 4x AA 1.5V battery or DC 6V 100mA (not include)
Specification:
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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
4.9 ★★★★★
Based on 1935 reviews
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Product Reviews
★★★★★ 5
Silky and Soothing
Color: Cream, Size: 2 Pack Queen（20"X 30"）
I thought I was getting 1 of the queen sized but I got 2. I got these for my Pomeranian's fuzzy pillow. He's always hot and these are very cooling and very good quality. He loves them and are very comfortable for him. They totally transformed his shaggy old pillow. I used the larger body pillow covers to replace the covers I had. They matched my bedspread perfectly. I use 2 body pillows along the exterior wall in my bedroom where there is cold coming through the floor in the winter. I'm sure I will enjoy them in the summer when it's hot too!
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Reviewed in the United States on January 10, 2026
★★★★★ 5
So soft and amazing quality
Color: 12 - Light Beige, Size: Twin
I can't tell you if they're cooling or not yet. The weather took a turn for the cold so I haven't put them on the bed yet. But the quality..omg it's exceptional! These are insanely soft! Not slippery like satin but not scratchy like percale. They're like the best of both worlds..light as satin but nicely weighty like percale. I don't know what kind of sorcery this is but these are literally better than those 6-zillion count Egyptian cotton sheets that cost more than the GDP of a small nation. These are exceptional!! Soft as butter but still feel like they'll last a while and not let you fall out of bed like silk lol.
When you fold them, they snap nicely.
They seem to have a lived in look..like they'll never be utterly wrinkle-free but who cares..they're smooth, soft and supposed to be cooling.
I never thought I'd find anything more comfortable than cotton sheets but these are even better.
The colors are ok. Pretty basic but they are true to life..some others look different online than when you get them..not these colors online are accurate.
This was a great deal and I'd recommend a thousand times over!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Cool and Comfy
Color: 01 - Dark Grey, Size: Queen
I bought these sheets based on reviews and price. Very pleased with quality. Definitely cooling and comfortable to lay on. Very smooth, almost satiny, to touch. Got in dark gray, color very pretty. Great quality for the price.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
The softest sheets ever! 💙
Color: 05 - Dusty Blue, Size: Queen, Color: 05 - Dusty Blue, Size: Queen
This sheets quality feels great! It feels a little heavy but comfortable. I love the way it just drops. It feels cool to the touch, and so so gently on my skin! I previous had gotten a 100% cotton sheets from this same brand and it feels soooo rough on my skin, but this one is great! Best money spent! Bamboo material! I'm never going back! I got the dusty blue, in the photo is looks gray because of light but I love the blue color, it looks great!
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Reviewed in the United States on June 7, 2026
★★★★★ 4
Comfy, cool
Color: 01 - Dark Grey, Size: Queen
This is my first time buying rayon/ bamboo sheets, and now I finally see what I've been missing. Very comfortable, soft, and feel really nice against the skin. Nice for this price point too. I took off one star because they do tend to wrinkle quickly, so I have to readjust them every night before going to bed. Also be aware that oil from your skin and hair products tend to stain them very quickly, and the stains are not easy to get out. But I'm ok with that as a trade-off for the comfort!
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Reviewed in the United States on May 15, 2026
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