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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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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
4.8 ★★★★★
Based on 1723 reviews
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Product Reviews
★★★★★ 4
High Quality
My husband is deficient in magnesium and these by far looked like they were of the highest quality . Not sure yet if they help him sleep better but will be purchasing them again.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Better sleep, better mood
This definitely helped my mood and sleeping. It literally changed my default. The only electrolyte that can pass the blood brain barrier. I recommend.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
For better sleep and consultation and calming effect.
It seems to work for me, it makes me calm but energetic, plus I sleep for 8 hours since taking it.
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Reviewed in the United States on May 10, 2026
★★★★★ 3
Not working for me 100%
Still not sure about how this magnesium affects me. I have only been taking one tablet an hour or two before bedtime. Seems like sometimes I can’t go to sleep after taking it, charges up my brain. Other times I sleep but have crazy dreams. Maybe it works for some, but not others. I’ll try to finish the bottle, but the lack of sleep after taking the Magnesium L-Threonate makes me hesitant to continue some nights. That’s mainly the reason I purchased this brand to include the reviews.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Helps Relax the muscles
I like to take a magnesium supplement daily, usually in the evening before going to be as it helps relax me for sleep
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Reviewed in the United States on May 3, 2026