What delivery time can we guarantee?

Delivery time depends on the actual order quantity, usually it will take about 2-30 days to deliver. If goods are in stock, it will take about 1-3 days. If some are not in stock and small quantity, it will take about 5-10 days. If customized order, and no more than 200-300pcs, it will take about 20-25 days normally. If bulk order up to 1000pcs, it will take 30 days.

Air Quality Monitor Gas Analyzers with Data Interface Driver Download for Indoor Use

Name: Air Quality Monitor Gas Analyzers with Data Interface Driver Download for Indoor Use
Brand: Shenzhen Langdeli Technology Co., Ltd.
SKU: 1956680641

Guangdong, ChinaShenzhen Langdeli Technology Co., Ltd.

US$42.00

2-499 Pieces

US$40.00

500-999 Pieces

US$38.00

1,000+ Pieces

Sample price:US$48.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Model NO.

DM509

Brand

Dienmern

Customized

Portable

Certification

CE, RoHS

Gas

CO2/Pm2.5

Type

Electrochemical Gas Analyzer

Product Name

Multi-Function Air Quality Detector

Material

ABS

Display

LCD Screen

CO2 Technology

Infrared ( Ndir )

Temperature Unit

Switch Between Celsius and Fahrenheit

Pm2.5 Detection Range

0-999 Ug/M&Sup3

CO2 Detection Range

400-5000 Ppm

Power Supply

Rechargeable Li-Battery 1500mAh Including USB

Transport Package

Neutral Box

Specification

164*74*26MM

Origin

Shenzhen, China

HS Code

9027100090

Key features

10-in-1 Multifunctional Detection: Monitors CO2, PM2.5/10/1.0, Formaldehyde, TVOC, Temperature, Humidity, and AQI simultaneously.

Real-time Data Storage & Export: Built-in storage preserves historical data with quick export and download capabilities for analysis.

Customized Product Options: Accepts OEM/ODM orders and customized testing instrument solutions for specific needs.

1-Year Warranty Coverage: Comprehensive one-year warranty provided for all mechanical and functional defects.

Multiple International Certifications: Certified with CE, RoHS, FCC, MSDS, UN38.3, and ISO9001 standards for safety and quality.

Advanced Sensor Technologies: Utilizes Infrared (NDIR) for CO2, Laser Scattering for PM2.5, and Electrochemistry for HCHO/TVOC.

Portable & Durable Design: Compact ABS body with LCD screen, powered by a rechargeable 1500mAh Li-Battery.

Professional Manufacturer Support: 10+ years experience with pre-production samples and final inspections before shipment.

Company profile

Shenzhen Langdeli Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2013-05-17Nearest Port: shenzhenAverage Response Time: ≤10.68hTerms 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

SummaryLangdeli Technology Co., Ltd. is identified as a China-based manufacturer/factory specializing in testing instruments, including air-quality monitors, gas detectors, radiation monitors, and related devices. The supplier reports 10 years of manufacturing experience, its own factory and production facilities, more than 10 production lines, an ISO 9001 management-system certification, and 6–10 R&D engineers and quality-control staff. It also states that its products hold CE, RoHS, PSE, and FCC certifications and that it has invention and utility-model patents. The supplier claims customized solutions, strategic partnerships with large companies, broad institutional and enterprise usage, and sales and after-sales service capabilities. However, the provided information does not establish independent verification of these claims, detailed financial strength, or specific customer names and project outcomes.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and describes itself as a professional testing-instrument manufacturer with its own factory, production workshop, and office buildings. Its stated product scope includes air-quality monitors, gas detectors, radiation monitors, and other testing instruments.

CertificationsThe supplier reports ISO 9001 certification for its management system and states that its products have passed CE, RoHS, PSE, and FCC certifications. These are explicit certification claims, although the provided slices do not include certificate numbers, validity dates, or issuing-body verification.

After-Sales capabilityThe supplier states that it has a comprehensive sales team and channel system capable of quickly responding to customer needs and providing professional pre-sales consultation and after-sales service. The evidence supports the existence of a stated service structure, but does not provide service-level metrics, response times, warranty terms, or repair arrangements.

R&D capabilityThe supplier identifies itself as a high-tech enterprise, reports a professional R&D team, emphasizes technological innovation, and claims multiple invention and utility-model patents. It also reports 6–10 years of combined R&D-engineer experience, providing explicit positive evidence of innovation resources and activity.

Production capacityThe supplier states that it operates its own factory and production workshop, has advanced production equipment, and runs more than 10 production lines. It also reports 6–10 quality-control staff, indicating established production and quality resources, although actual capacity, output, and utilization are not specified.

Customization capabilityThe supplier explicitly states that it provides customized testing-instrument solutions and maintains R&D, production, and sales capabilities for testing instruments. This supports customization capability, but the slices do not specify customization scope, engineering lead times, minimum order quantities, or examples of completed customized products.

Client casesThe supplier reports strategic partnerships with multiple large companies and says its products are used by government agencies, environmental-protection departments, health-supervision departments, food enterprises, and other fields. These statements indicate broad claimed application and customer exposure, but no customer names, order details, or independently verifiable case studies are provided.

Product Q&A

Q:Who are we?

We are a manufacturer that has been producing and exporting various testing and digital instruments over 11 years. We are based in Guangdong, China, starting from 2013, sell to North America(25.00%), Western Europe(20.00%), Southern Europe(13.00%), Eastern Europe(9.00%), Northern Europe(8.00%), South America(7.00%), South Asia(5.00%), Eastern Asia(5.00%), Southeast Asia(5.00%), Central America(2.00%), Mid East(1.00%). There are total about 51-100 people in our office.

Q:How can we guarantee quality?

Always a pre-production sample before mass production; Always final Inspection before shipment. Certificates can be provided, including CE, Rohs, FCC, MSDS, UN38.3, ISO9001 etc.

Q:What can you buy from us?

a.WiFi Tuya meter (CO2/PM2.5/PM1.0/PM10/Temperature/Humidity/HCHO/TVO) b.Wall mounted decibel meter c.PM2.5 detector, combined with CO2/Temperature/Humidity d.Multi-functional detector measuring PM2.5/HCHO/CO2/PM1.0/PM10/temperature/humidity e.Geiger counter, nuclear radiation detector/electromagnetic radiation detector f.O3 (Ozne) meter g.NH3 meter h.CO meter i.O2 meter j.Alcohol detector k.Mental detector

Q:Why should you buy from us not from other suppliers?

a.Accept customized OEM/ODM orders. b.We provide one-year warranty and lifetime service for customers. c.Accept third-party inspection service to guarantee quality for you. d.Our products are private, developed and produced by our factory independently.

Q:What services can we provide?

a.Accepted Delivery Terms: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery; b.Accepted Payment Currency: USD, HKD, CNY; c.Accepted Payment Type: T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow; d.Language Spoken: English, Chinese.