


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.
- To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
Based on 638 reviews
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Product Reviews
★★★★★ 5
Great for keys
Color: Black
I haven’t misplaced my keys since I bought it. I do wish it were a little heavier in weight but it gets the job done
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 1
I do not recommend
Color: White
Very flimsy and cheap
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 3
Great for simple jewelry
Color: Black
I’ve had it for some time now, it’s okay. Not the material I was expecting. It’s sturdy. It came with a few scratches, I did get a used one though. I recommend this product for simple jewelry for kids, and get something better quality for your more expensive jewelry.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Good for the price
Color: Black, Color: Black
Very cute, well made, it is plastic but it’s durable. Better than the higher priced item I was considering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
★★★★★ 2
Check the measurements
Color: Black
Looked cool but it was the wrong size. It was too big.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
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