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Description
CNYST Nitrogen Oxide Gas Detectors Fixed NOX Detector with Explosion Proof Grade Exd ⅡC T6 Gb Range 0-20ppm Resolution 0.1ppm Single Input 4~20mA and RS485 Stable Signal High Precision Rapid Response Long LifeAbout this Item Model: NOX Range: 0 20ppm Resolution: 0. 1ppm Fixed gas detector adopts advanced catalytic gas sensor or electrochemical sensor, which can translate the gas concentration in the air to the digital signal output. The detector working with gas controller can be used to detect gas in refinery, chemical plant, LPG station, boiler room, painting plant and other places with gas exists. It is used to detect the concentration of flammable gas
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 2258 reviews
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Product Reviews
★★★★★ 5
Very happy
Capacity: 64GB eMMC+128GB SD Card
Great little Chromebook, very happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 4
good/bad HP Chromebook 15" Intel N200, 8GB DDR5 RAM, 192GB Storage
Capacity: 64GB eMMC+128GB SD Card
As I just received this Chromebook this is my review. Likes: its much faster than my old Chromebook which is a Acer about 10 years old. I like the big screen vs my old 14". good color and definition. HATE:The lightly colored letters. It is near impossible to read in low light and even in medium light. I have already ordered new stick on letters to make it more visible. HP you should have done a better job than this. This really detracts from the enjoyment of using this Chromebook. It is terrible. I can't give it 5 stars because of this problem.I would have liked another port for plug ins like mouse or thumb drives. Otherwise I love it.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Excellent for the price!
Capacity: 64GB eMMC+128GB SD Card
So far so good. Considering I got it primarily for browsing and smaller tasks, it's worrying perfectly so far. Boots up very fast, runs very smooth, and so far I'm happy with the battery life. I do wish I had thought about making sure it had a keyboard light but that's still mostly not a problem for me. I also like how simple it was to set everything up and get it synced with my google account and phone.
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Reviewed in the United States on December 26, 2025
★★★★★ 5
Good product
Capacity: 64GB eMMC+128GB SD Card
Chromebooks are a great concept. They're laptops without the bloat.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
I love it
Capacity: 64GB eMMC+128GB SD Card
I love it
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Reviewed in the United States on February 22, 2026
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