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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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4.1 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 4
Fun, Steamy, and Just Enough Depth
Format: Kindle
I liked this book — it was cute, short, and exactly what I expected from a quick Omegaverse read. While it doesn’t dive too deeply into character development, there was enough personality and backstory sprinkled in to keep the relationships believable and engaging, especially given the length.
What I really appreciated was that the focus stayed on the main characters and their connection. The heat, the banter, and the romance were front and center without getting bogged down in unnecessary drama. It made for an easy, enjoyable read that flowed smoothly from start to finish.
I’m looking forward to the next book in the series. There was a teaser blurb at the end, but it isn’t up on Amazon yet — hopefully it’ll be posted soon so I can add it to my wish list.
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Reviewed in the United States on September 14, 2025
★★★★★ 3
Good But
Format: Kindle
A little disjointed at times, at least to me. This was about Lila (omega woman) and Harrison, Wesley and River (alpha males). The main characters were likeable, as was Lila's friend, Wendy. Lila finally wised up and left the alpha she had been with for a couple of years because he was an a-hole, who treated and used her horribly. She knew some, if not all, of the guys from college if I remember correctly. The guys had been looking for an omega to bond with for some time. When Lila saw Harrison again, the other two guys were out on a date with another omega but Harrison refused to go because he didn't like her. He saw Lila again and knew she was the omega they had been searching for. However, it wasn't easy for them to convince Lila of that because of the way her ex-alpha treated her.
The sex was hot. There was one inconsistency. I could almost swear that when Lila first saw Harrison again, she told her best friend, Wendy, that Harrison was the lead for his pack. Then later on when she's spending time with River, she thinks he is the pack's lead. Maybe I read something incorrectly. All in all, a good story.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Sweet read
Format: Kindle
A sweet steamy read of an omega who finds her worth and finds the guys that are willing to show her. The story had lovable characters with low angst and a HEA.
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Reviewed in the United States on November 7, 2025
★★★★★ 5
knotty book 1
Format: Kindle
Super enjoyable! What a horrible ex. Was glad to see the back of him, I was hoping I would get to see him suffer a whole lot more.
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Short and sweet
Format: Kindle
Beautifully written, I was worried when it was labelled as a novella at the start, really used to those missing info and jumping forward to complete the story or not having complete character growth, not to worry! Author gave enough time to fall in love (and hate) with everyone, can't wait to read Wendy's story I feel like she will be the badass we all love!
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Reviewed in the United States on August 17, 2025
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