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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Formaldehyde TVOC Detector PM2.5 Dust Tester, DM5021. Material: ABS 2. Display mode: 2. 8 inch LCD screen display, 320x240 pixels 3. Atmospheric pressure: 86Kpa 106Kpa 4. Detection method of PM: laser scattering 5. Sampling time: 1. 5 seconds 6. Detection temperature: 10 to 50 degrees celsius 7. Relative humidity: 20 percent to 85 percent 8. Storage temperature: 10 degrees celsius to 60 degrees celsius 9. Concentration unit of HCHO and TVOC: mg m3 10. Power supply: 1500mAh lithium battery 11. Power
1. Material: ABS
2. Display mode: 2.8-inch LCD screen display, 320x240 pixels
3. Atmospheric pressure: 86Kpa - 106Kpa
4. Detection method of PM: laser scattering
5. Sampling time: 1.5 seconds
6. Detection temperature: -10 to 50 degrees celsius
7. Relative humidity: 20 percent to 85 percent
8. Storage temperature: -10 degrees celsius to 60 degrees celsius
9. Concentration unit of HCHO and TVOC: mg/m3
10. Power supply: 1500mAh lithium battery
11. Power supply: 5V DC power charging via USB port
12. User adjustable formaldehyde (HCHO) alarm threshold to alert user to elevated
13. Onboard fan draws ambient air for more accurate real-time results
14. With low battery warning
15. Combined with multiple air sensors and a built-in fan, it can monitor real-time detectable formaldehyde (HCHO), total volatile organic compounds (TVOC), particulate matter < 2.5 microns in size (PM2.5/1.0/10), temperature and humidity, with clock and recording function
16. Dimensions: 155x87x35mm
17. Weight: about 280 grams
Packing list:
- Detector x 1
- USB cable x 1
- Manual x 1
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
4.4 ★★★★★
Based on 2150 reviews
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Product Reviews
★★★★★ 5
Indestructible
Style: Fetch Balls (Pack of 2), Size: 3 inch
These balls are indestructible! We have a lab and a lab mix and they CANNOT damage these balls. They love them for fetch and to just chew on them (slightly squishy, but NO damage). Best toys we have bought for them.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Great trial set. Just be careful throwing the orange one!
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Blue isn't that easy to see in the yard
White charges with bright light/UV and is truly a game changer for night-time fetch. Both dogs clearly favor it.
Orange is easy to see in the grass at day
They're 3 different weights as well, so double trial. I prefer medium for my big dogs, though light performs well too
The orange is HEAVY and unyielding. Do NOT throw it with a ball thrower. It could damage your house or knock your dog out. Seems tough though.
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Reviewed in the United States on January 16, 2026
★★★★★ 3
Not as good as chuck it anymore
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
I have bought these before and the where just like the chuck it balls. These are not those balls. The are lighter and my dog has already cause damage to one
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Cheap but expected, worked as intended, none of them broke.
Size: 1000 Teaspoons
Seems to be cheap quality but what else can you expect for the price? I needed something cheap that would work for cold foods, and these delivered. They lasted me forever and I didn’t have any break, I just didn’t trust them with super hot foods. I will buy again in a heartbeat though because for everything else they work great. They are small spoons that don’t hold much, bend easily, are really lightweight and I wish they came in portions or wraps because after opening they sat there collecting dust through the hole in the box and so I had to transfer them to a closed container for sanitary purposes. Again though, I didn’t really expect anything else, so I’m happy regardless.
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Reviewed in the United States on September 26, 2025
★★★★★ 5
Great stirring spoons
Size: 1000 Teaspoons
Great price. Cheapest spoons for stirring. Don't expect to eat ice cream with them though. Me happy.
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Reviewed in the United States on May 15, 2026