What are the reference ratings for CO2 levels?

350-400ppm is usual outdoor air; 400-1000ppm is typical well-ventilated living space; 1000-2000ppm indicates inadequate air; 2000-5000ppm is stagnant air causing headaches; >5000ppm may cause severe hypoxia.

Air Quality Detector for School Office Classroom Gas Analyzers

Name: Air Quality Detector for School Office Classroom Gas Analyzers
Brand: Shenzhen Langdeli Technology Co., Ltd.
SKU: 2114676605

Guangdong, ChinaShenzhen Langdeli Technology Co., Ltd.

US$56.00

2-99 Pieces

US$51.40

100-499 Pieces

US$49.50

500+ Pieces

Sample price:US$56.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

DM155C

Brand

Dienmern

Customized

Portable

Desktop / Wall Mounted

Certification

CE, RoHS

Gas

CO2/Pm2.5/Pm10/Hcho/Tvoc/Aqi/Temp/Hum

Type

Desktop / Wall Mounted Gas Detector

Product Name

Air Quality Tester

Detecting Gas

CO2/Pm2.5/Pm10/Hcho/Tvoc

Power Supply

Rechargeable Lithium Battery

Certificate

CE RoHS

Application

Home Office

Color

White

Sensor Type of CO2

Ndir

Sensor Type of Pm2.5

Laser

Display

LCD Display Screen

Material

ABS

Transport Package

Neutral Package

Specification

240*120*24mm

Origin

Shenzhen, China

HS Code

9027100090

Key features

Multi-Gas Detection: Detects CO2, PM2.5, PM10, HCHO, TVOC, AQI, Temperature, and Humidity.

Customization Support: Offers custom logo, packaging, manuals, stickers, and software options.

Portable Design: Available in Desktop or Wall Mounted configurations for flexible installation.

Rechargeable Battery: Powered by rechargeable lithium battery with Type-C charging interface.

NDIR CO2 Technology: Uses infrared NDIR sensor for accurate carbon dioxide concentration measurement.

Laser PM2.5 Sensor: Employs laser scattering technology for precise particulate matter detection.

CE and RoHS Certified: Product meets CE and RoHS safety and environmental standards.

1-Year Warranty: Comes with a comprehensive 1-year warranty for peace of mind.

Company profile

Shenzhen Langdeli Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2013-05-17Nearest Port: shenzhenAverage Response Time: ≤7.80hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA

AI-Powered supplier vetting

SummaryShenzhen Langdeli Technology Co., Ltd. is a Chinese manufacturer specializing in high-quality testing instruments with over 10 years of experience. The company holds ISO 9001 certification and has patents indicating strong innovation. It serves both domestic and international markets, exporting a significant portion of its products. Langdeli emphasizes quality and compliance, with products certified by CE, RoHS, PSE, and FCC. The company has robust production capabilities, with more than 10 production lines and an experienced R&D team. It also offers comprehensive after-sales service and custom solutions, leveraging strategic partnerships with large companies.

Supplier typeShenzhen Langdeli Technology Co., Ltd. is a manufacturer or factory based in Guangdong, China, specializing in testing instruments.

CertificationsThe company is ISO 9001 certified and its products are CE, RoHS, PSE, and FCC certified, meeting international safety and quality standards.

After-Sales capabilityLangdeli has a comprehensive sales and channel system, providing professional pre-sales consultation and after-sales service.

R&D capabilityLangdeli is a high-tech enterprise focusing on technological innovation, possessing multiple invention and utility model patents.

Production capacityThe company operates over 10 production lines and has advanced production equipment, supporting strong production capabilities.

Customization capabilityLangdeli provides customized testing instrument solutions through strategic partnerships with large companies.

Client casesProducts are used in government, environmental, health, and food sectors, indicating diverse and recognized customer cases.

Product Q&A

Q:What test indices are included for the air quality monitor?

It includes CO2 (using Infrared NDIR sensor), Temperature, and Humidity. Suitable for detecting CO2 concentration in industrial, agricultural, and residential environments.

Q:How to charge the device?

It uses a mini USB port charging line included in the standard accessories. We also offer adapters (US, Europe, etc.) if extra cost is added.

Q:Do you support OEM or custom orders?

Yes, we support custom logo printing, custom packaging, custom manuals in multiple languages, custom stickers (e.g., Amazon FBA UPC), and customized software features like changing standard values or language display.

Q:What certificates are included?

The product includes CE and RoHS certificates, as well as MSDS and UN38.3 documentation.

Q:What are the common application fields for this monitor?

Common fields include industrial/agricultural plants, greenhouses, clean rooms, homes, offices, meeting rooms, classrooms, hotels, hospitals, shopping malls, airports, and theaters.