


985 Airborne Particle Counter
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
985 Airborne Particle CounterSpecifications Display Type Digital Data Logging Not Data Logging Data Logging Channels 0. 3 m, 0. 5 m, 1. 0 m, 2. 0 m, 5. 0 m, 10. 0 m Flow Rate 0. 1 cfm (2. 83 L min) Light Source 775 nm 795 nm, 90 mW Class 3B Laser Count Modes Raw Counts, # m, # ft, # litre in Cumulative or Differential Mode Counting Efficiency 50% @ 0. 3 m; 100% for particles > 0. 45 m (per ISO 21501) Zero Count 1 count 5 minute (JIS B9921) Concentration Limits 10% at 4,000,000
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Your 985 Airborne Particle Counter orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Satisfied
Color: Brown, White, Black, Size: Large
Nice fit and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Nice material, holds collar shape well.
Color: Wine Red, Navy Blue, Black, Size: Medium
Good value for the money. You can machine wash and dry on low heat, in my opinion. Laying flat is too much of a pain.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Great tshirts!
Color: Light Gray, Dark Gray, Black, Size: X-Large
Husband loved these tshirts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 2
Not made from the most comfortable fabric
Color: White, Light Gray, Black, Size: Large
It is not the most comfortable fabric which makes it not suitable for summer clothing. Also, the fitting of the neck doesn’t look good since material is not wrinkle free
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
★★★★★ 4
Excellent Mock Neck T-Shirts
Color: Wine Red, Navy Blue, Black, Size: Medium
As a man who appreciates comfort and style, I can confidently say these August Alley mock neck t-shirts are a solid choice. I'm always looking for versatile basics, and these fit the bill perfectly.
The cotton material feels great against the skin, and they've held their shape well after a few washes. I appreciate the slim fit; it looks modern without being too tight. Whether I'm wearing them casually or layering them under a jacket, they always look sharp.
For the price, getting a 3-pack of these quality shirts is a fantastic deal. Highly recommend them for any guy looking to upgrade his basic tee collection.
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Reviewed in the United States on June 24, 2025
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