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Description
JD-3002 Carbon Dioxide Comprehensive Air Quality Temperature Humidity Detector, JD-3002Instrument instructions: 1. After the test, the power of the equipment must be turned off to avoid accidents 2. Prevent the instrument from violent vibration 3. After placing the instrument for a long time, the odor gas will accumulate in the instrument, which will seriously affect the test results, in this case, the instrument must be placed in a cool and ventilated place, and then used for more than 1 hour (no operation is required during the
Instrument instructions:
1. After the test, the power of the equipment must be turned off to avoid accidents
2. Prevent the instrument from violent vibration
3. After placing the instrument for a long time, the odor gas will accumulate in the instrument, which will seriously affect the test results, in this case, the instrument must be placed in a cool and ventilated place, and then used for more than 1 hour (no operation is required during the ventilation process instrument)
4. The expired and defective products should be repaired in time.
5. Avoid shocking the sensor with gas higher than the measurement range, otherwise it may damage the sensor, and man-made damage is not covered by the warranty
Instrument introduction:
1. Digital temperature and humidity sensor
2. LCD display
3. Mute button: Turn on or off the alarm sound. In the silent mode, the " " symbol is not displayed and there is no alarm sound. The default is to turn on the sound
4. "+" button: When setting the alarm value, increase the value.
5. Power button: long press for 2 seconds to turn on or off the power, when power on, the number field counts down from 120
6. Temperature unit selection button: Celsius and Fahrenheit conversion
7. "-" button: When setting the alarm value, decrease the value
8. Setting button: Short press this button to set the alarm value of "CO2→TVOC→HCHO" in sequence, the original factory setting value will be displayed and flashing, and the parameter will be adjusted by the "+" button and "-" button, and the value will be displayed after 10 seconds. automatic storage
9. Power supply: DC5V built-in 1800mAh lithium battery
10. Dimensions: 195x95x35mm
11. Carton packaging weight: 270 grams
Display content introduction:
1. Alarm sound: press the "mute button" to operate
2. CO2 measurement range: 350ppm～2000ppm
3. TVOC measuring range: 0.000 mg/m3～2.000 mg/m3
4. HCHO measuring range: 0.000 mg/m3～1.000 mg/m3
5. Temperature display: press the "temperature unit selection button" to operate
6. Measuring range: 0-90.0 degrees Celsius, 32-194 degrees Fahrenheit
7. Environmental quality reminder: excellent, the detection value is lower than the set value; good, the CO2 detection value is 50ppm higher than the set value
8. The TVOC detection value is 0.01 mg/m3 higher than the set value
9. The detected value of HCHO is 0.03 mg/m3 higher than the set value
10. Pollution: Buzzer fast sound alarm
11. The detected value of CO2 is 100ppm higher than the set value
12. The TVOC detection value is 0.02 mg/m3 higher than the set value
13. The detected value of HCHO is 0.06 mg/m3 higher than the set value
14. When the battery power is too low, the battery box will flash to remind the user to charge
15. When charging, the characters in the battery frame will flash in sequence until the battery symbol is fully displayed when the battery is fully charged
16. Humidity measurement range: 0～99.0RH
important hint:
1. Before use, please read the following detailed introduction carefully, and use the instrument correctly according to the manual
2. Do not disassemble the instrument or throw it into fire
3. Avoid operating the instrument in a strong wind environment
4. Avoid shock and drop
5. If it is not used for a long time, the warm-up time for the power-on will be longer
6. Note: Do not let liquid flow into the instrument
Specification:
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4.4 ★★★★★
Based on 2090 reviews
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Product Reviews
★★★★★ 5
such a good read
Format: Kindle
Madison, Lucas, Grey and Rian were made for each other!!! First time reading from this author and I’m not disappointed!!! Absolutely love the Love in this book and couldn’t ask for a better OV!
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Reviewed in the United States on October 25, 2023
★★★★★ 4
Fluffy and Nice Omegaverse
Format: Kindle
… this would have made 5 stars but for 2 reasons.
A.) there were quite a few typos; misspelled words, missing quotations, “the his” mistakes, and various signs that maybe a proofread would do good.
B.) the writing was quite textbook. Late blooming omega is struggling with her new self, finds a absurdly wealthy pack of alphas, every thing is almost insta-love but she resists, then decides to love herself and let everyone be happy.
Rian was my favourite (obviously the author’s favourite too because he got the most page time) but I wish we could see more of his CEO side? He went to work maybe ONCE the entire time. Gray was supposed to be the “growly one” but he turned out to be puppy dog. Lucas was a genius brainiac doctor - but also super alpha with an aggressive hindbrain with a breeding k*nk?? And then there was no actual “breeding”??
Spice 3/5 - normally omegaverse books are super high on messy smut but this was tamer.
Romance 3/5 - insta-love that was then resisted because of personal hangup’s
Plot 2/5 - weird paced head hopping, showing the same scene from different POV’s that made me feel like it was 2 steps backward, 1 step forward.
Humour 4/5 - there were a dozen lines that genuinely made me chuckle out loud
Would have been five stars but the lack of proofreading and the predictable plot made me unable to get up to ADORED IT level - four stars is still and official ENJOYED IT, y’all. This isn’t a bad rating. The “Club Heat” has intriguing possibilities so I’m going to give the second one a shot.
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Reviewed in the United States on March 31, 2023
★★★★★ 5
Great book
Format: Kindle
I absolutely feel in love with all 4 characters!!! The bedroom scenes were 🌋🌡🔥🔥🔥. I couldn't put this book down!!! I'm hooked for the whole series Book 2 here I come!!!!! Its a fun easy book and story to read!!
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Reviewed in the United States on October 4, 2024
★★★★★ 4
Fun with a late blooming omega
Format: Kindle
I like this book. The story is fun, cute, and sexy. There's just a little drama, some excellent, steamy scenes, and a fairly good relationship building storyline. I especially like how all the main characters are a bit older than the usual 20 somethings I tend to see in this kind of book.
Having said that, I wish there were more descriptions of the places, as well as the food in the fancy restaurant. I enjoyed the cocktails at the club, so I missed that kind of detail when Gray took Madison on a dinner date. I also wish there had been more interaction between Lucas and Madison, and Lucas and Rian. It felt a bit lopsided, with a focus on Rian, Madison, and Gray.
I wish it had been proofread - there are a lot of typos, but nothing too distracting.
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Reviewed in the United States on September 12, 2022
★★★★★ 3
Madison Deserved Better
Format: Kindle
Madison was a beta...except she wasn't any longer. She was a late presenting Omega. And she was struggling. She was tall and thin, not tiny and curvy. She was opinionated. She was everything an Omega was not. After suffering through her first heat, her friends took her to Ardor, a club where Omegas came to safely find Alphas. She's not expecting much but then she connects with a sexy beta. And when she meets his Alphas, they set her body on fire. Maybe, she's found her no-strings-attached heat pack. Maybe, she's found something more.
I could not connect with the characters in this book, so their story never resonated with me. And there was no love story; there was sex. Grey made it clear from the beginning that he had a true love and it was his beta boy, Rian. He went so far as to reassure Rian “Say the word, I’ll never touch her again. Lucas can put the babies in her. I only need you, beta boy”. So, Madison was there for babies, no emotions needed. Nice. No, thank you. I want the Omega to be the center of their world, not an incubator. Lucas and Rian weren't any better. After her heat, they let her leave. Not one of them made her feel valued. No one gave her a reason to stay or even offered a cuddle. And the sex didn't even come across as mind-blowing. Madison deserved better.
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Reviewed in the United States on March 11, 2025