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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.
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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]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Most durable ball!
Size: Medium
This are my dogs fav ball 😍 they last forever!
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Chuckit medium rebound balls
Size: Medium
My 8 month old German shepherd dog loves these balls. They are easy to throw, they bounce great, they are very chewable! She keeps one in her mouth most of the time. It satisfies her need to chew and she does not chew other things. She drops it in the water and lets the hole fill up and drinks that way. The only problem that has caused is suction in her mouth and difficulty in dislodging it for her. However, she would be lost without it!
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Reviewed in the United States on April 19, 2023
★★★★★ 5
These are definitely indestructible
Size: Medium
Both of my dogs can destroy a ball in a matter of minutes if I let them play with them (supervised) as is. Well not with these balls. They are the ONLY ones I have found that are 100% indestructible. Please only let your dogs play with these as a toy when supervised though. They go really far when throwing them, so both dogs get a good amount of running and exercise with these. I also bought these because they have the hole in the middle of the ball which is very important in the event that a dog gets one stuck at the back of their throat. This allows them to breath unlike those without this hold. It's an unlikely event, but as dog owners, we all need to be aware of this and educate ourselves on what to do if this SHOULD happen. This isn't a scare tactic, nor a reflection of this particular brand, it can happen with any type of ball. My two dogs are about 45ish lbs and the size is perfect for them, I don't want anything smaller than this. They love them. There is no annoying squeak. Really easy to wash after use. Some balls take forever to get the slimy saliva off, but these don't.
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Reviewed in the United States on September 25, 2025
★★★★★ 5
He loves this ball
Size: Medium, Size: Medium
My dog loves this ball. It’s the perfect size, he enjoys playing fetch and this ball has been his fav one. Thank you guys for making my lil one happy
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Rubberized fun for your little ones
Pattern Name: Animals
If your pet baby loves squeaky toys, then these are right for them. Value for the money. Soft rubber, durable squeaker, and they bounce like a ball. I should say a ball that ricochets off of anything it bounces off of. Loads of fun for the little dogos.
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Reviewed in the United States on July 3, 2025