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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
ST8030 Mini Digital Photo Laser Digital Tachometer Non Contact High Accuracy MPU LCD Display, ST8030Features 1. Can preset up to 9 impeller quantities, measure more accurately. 2. Hold maximum value, minimum value. 3. Selectable unit of the rotate speed between RPM and RPS. 4. With low battery indication and LCD display. 5. Auto off: switch off Automatically. 6. Combine the microprocessor technology and laser technology, more intelligent and reliable. 7. Mini size, handheld and portable. Specifications 1. Display: 5 Digits LCD display 2. Units: RPM,
Features1. Can preset up to 9 impeller quantities, measure more accurately.
2. Hold maximum value, minimum value.
3. Selectable unit of the rotate speed between RPM and RPS.
4. With low battery indication and LCD display.
5. Auto off: switch off Automatically.
6. Combine the microprocessor technology and laser technology, more intelligent and reliable.
7. Mini size, handheld and portable.
Specifications
1. Display: 5 Digits LCD display
2. Units: RPM, RPS
3. Measuring range: 100 ~ 30000RPM, 1.7 ~ 500RPS
4. Resolution:
- 0.1RPM (100 ~ 999.9RPM), 0.1RPS (1.7 ~ 100RPS)
- 1RPM(1000 ~ 30000RPM), 1RPS(100 ~ 500RPS)
5. Accuracy:
- +/- (0.1%n + 5d) RPM; (100 ~ 9999.9RPM)
- +/- (0.02%n + 2d) RPM; (10000 ~ 30000RPM)
6. Sampling rates: 1/Sec
7. Number of impeller setting: 1 ~ 9
8. Time base: Quartz crystal
9. Circuit: Exclusive one-chip of microcomputer LSI circuit
10. Detecting distance: 10 ~ 40cm / 3.9 ~ 15.7in
11. Auto power off: 10 Minutes idle
12. Operational condition: -10 ~ +50 Degree Celsius; 14 ~ +122 Fahrenheit degree; 10% ~ 90% RH
13. Storage condition: -20 ~ +60 Degree Celsius; -4 ~ +140 Fahrenheit degree; 10% ~ 75% RH
14. Power supply: 3 * 1.5V AAA (LR03) (Not included)
15. Product size: 14.3x5.5x2.2cm
16. Product weight: 72g (Without batteries)
Specification:
| Package Weight |
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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
4.5 ★★★★★
Based on 934 reviews
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Product Reviews
★★★★★ 5
Very comfortable. On the soft side.
Size: Queen / Standard, Color: White
Soft, but not too soft. I would actually give 4.5 stars. The pillow is a bit too long and bulky, wish it had a bit more support, but overall, great purchase considering the price. Hopefully it doesn't degrade after washing.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Excellent pillows that are worth the cost
Size: Queen / Standard, Color: White
These are wonderful. Completely relieved my back pain the first night I slept on them -– I put one underneath my back as I slept, and a weeklong terrible pain vanished overnight. Felt like sleeping on a cloud. As others have noted, they are neither too soft nor too firm…they’re really just right, and I think would make great guest room pillows since everyone would like them. These were definitely worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
Great , fluffy pillows
Size: Queen / Standard, Color: White
They came compressed into a small roll so I was wondering how they would do. BUT they fluffed up to incredible size and comfy feel. I am impressed so far!
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Pillow comfort and quality
Size: Queen / Standard, Color: White
Bought this for my husband. He is very happy with it. It is well constructed. He doesn’t like too firm or too soft. It meets those requirements. Very reasonably priced. I have bought very expensive pillows that aren’t even comfortable!
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Reviewed in the United States on May 25, 2026
★★★★★ 4
Pretty good.
Size: Queen / Standard, Color: White
Me and my fiancé have been going through a lot of pillows, trying to find the right ones. We go to this local hotel to unwind and use the whirlpool sometimes. Their pillows are immaculate. So I starting looking at “Hotel Pillows”. These are not the same as the hotel pillows, not even close tbh, but they are the best ones I’ve bought so far. They are comfy from day one. I was worried when opening the box and seeing that they had the same cover on them as others I bought before, but they were not the same. Pretty comfortable, and less neck pain than any of the other ones. My house is like the house of pillows and I am finally going to start getting rid of the old ones. Maybe we’ll find some down pillows to put on our registry, but until then, these are staying on my bed.
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Reviewed in the United States on May 29, 2026
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