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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
FNIRSI SFD?02 4 in 1 Indoor Air Quality Monitor1. Real time HCHO & TVOC Detection 2. HCHO range: 02000? ppm (electrochemical sensor) 3. TVOC range: 010? mg cubic meters (semiconductor sensor) 4. Audible visual alerts when thresholds exceeded; default thresholds: 0. 08? mg cubic meters for HCHO and 0. 30? mg cubic meters for TVOC 5. Comprehensive Air Quality Assessment 6. Displays formaldehyde safety in 5 grades 7. Includes temperature, humidity, and real time clock display 8. Records past data for
1. Real-time HCHO & TVOC Detection2. HCHO range: 0–2000?ppm (electrochemical sensor)
3. TVOC range: 0–10?mg/cubic meters (semiconductor sensor)
4. Audible/visual alerts when thresholds exceeded; default thresholds: 0.08?mg/cubic meters for HCHO and 0.30?mg/cubic meters for TVOC
5. Comprehensive Air Quality Assessment
6. Displays formaldehyde safety in 5 grades
7. Includes temperature, humidity, and real-time clock display
8. Records past data for trend analysis
9. Calculates spatial averages across monitored spaces
10. Estimates remediation time, cost, and materials based on room size
11. 2.4-inch HD tempered-glass display with adjustable backlight
12. Compact and lightweight, 75×45×95?mm
13. Built-in 1000?mAh lithium battery delivers 8–10?h runtime
14. USB-C fast charging (5?V/2?A), fully charged in ~1.5?h
15. Supports operation while charging
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
4.0 ★★★★★
Based on 1531 reviews
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Product Reviews
★★★★★ 5
Great sunscreen!
Size: 3 Ounce (Pack of 1)
This sunscreen is fantastic. Exactly what it says, no white cast, not greasy and leaves your skin feeling great! Would totally recommend this product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
non-greasy, lightweight, and absorbs quickly, making it ideal for daily use on both face and body
Size: 3 Ounce (Pack of 1)
Made with beef tallow and zinc oxide, free from harsh chemicals and artificial fragrances
Hydrates and nourishes skin, perfect for dry or sensitive skin
Non-toxic and environmentally friendly, safe for ocean life
Stays put during activities, up to 80 minutes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
Effective Sun Protection with Natural Ingredients.
Size: 3 Ounce (Pack of 1)
This sunscreen combines beef tallow and zinc oxide to offer reliable protection against the sun. The texture is lightweight and absorbs well, leaving the skin feeling comfortable without a heavy sensation. It works for both the face and body and holds up well against water exposure. It is a practical choice for those seeking a sunscreen with a more natural formula.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Great sun screen
Size: 3 Ounce (Pack of 1)
Sunscreen goes on pretty good. The smell of it isn’t so bad Would recommend for anyone looking to use sunscreen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Great For Eczema and Moisturizing
happy I purchased, seen it for a while and wanted to try something natural for my Eczema, and I must say after just
a few applications my skin has cleared up I'll definitely re order. It is a little on the loose, greasy side so you really only need to use just a dab but, it is a good moisturizing agent but it does work very well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
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