What is the delivery time?

Delivery takes 1-3 days for stock items, 5-10 days for small non-stock quantities, 20-25 days for customized orders under 300pcs, and 30 days for bulk orders up to 1000pcs.

What is the maximum number of data records stored?

The device is limited to 90 records. Once the limit is reached, the oldest record is automatically deleted to make room for the latest data.

How do I export data to a PC?

Download the CO2 Sensor.zip, unzip it, install the appropriate file for your Windows version, connect via Type-C, select the correct Virtual COM port, and double-click the power button to upload data.

Multi-Function Air Quality Monitor Data Export and Download with Rechargeable Battery

Name: Multi-Function Air Quality Monitor Data Export and Download with Rechargeable Battery
Brand: Shenzhen Langdeli Technology Co., Ltd.
SKU: 2167026695

Guangdong, ChinaShenzhen Langdeli Technology Co., Ltd.

US$45.00

2-499 Pieces

US$38.00

500-999 Pieces

US$36.00

1,000+ Pieces

Sample price:US$45.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Model NO.

DM509

Product Name

Multi-Function Air Quality Detector with Data Stor

Product Size

164*74*26mm

Material

ABS

Color

Black+Orange

Display

LCD Screen

CO2 Technology

Infrared ( Ndir )

Temperature Unit

Switch Between Celsius and Fahrenheit

Pm2.5 Detection Range

0-999 Ug/M³

CO2 Detection Range

400-5000 Ppm

Power Supply

Rechargeable Li-Battery 1500mAh

Hcho Detection Range

0.001-1.999mg/M³

Tvoc Detection Range

0.001-9.999mg/M³)

Transport Package

Neutral Box

Specification

164*74*26MM

Trademark

Dienmern

Origin

Shenzhen, China

HS Code

9027100090

Production Capacity

50000 Pieces/Year

Key features

10-in-1 Multifunction Monitoring: Detects CO2, PM2.5/10/1.0, Formaldehyde, TVOC, Temperature, Humidity, and AQI simultaneously.

Data Storage and Export: Built-in storage for 90 records with PC download capability via Type-C cable for trend analysis.

Rechargeable Battery: Equipped with 1500mAh Li-Battery and 5V DC Type-C charging port for portable use.

Comprehensive Certifications: Passed CE, RoHS, PSE, FCC, ISO9001, UN38.3, and MSDS for global market safety compliance.

1-Year Warranty Coverage: Includes one-year warranty and lifetime technical service support for all mechanical defects.

Customization Options: Accepts OEM/ODM orders for customized testing instrument solutions.

Flexible Delivery Time: 1-3 days for stock items, 20-30 days for customized orders depending on quantity.

Multi-Unit Temperature Display: Allows switching between Celsius and Fahrenheit temperature units for user convenience.

Company profile

Shenzhen Langdeli Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2013-05-17Nearest Port: shenzhenAverage Response Time: ≤11.31hTerms 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 producing and exporting various testing and digital instruments for over 11 years, based in Guangdong, China since 2013.

Q:How can you guarantee quality?

We conduct a pre-production sample before mass production and a final inspection before shipment. Certificates like CE, RoHS, FCC, and ISO9001 are available.

Q:What products can you buy from us?

We offer WiFi Tuya meters, wall-mounted decibel meters, PM2.5 detectors, multi-functional air quality detectors, Geiger counters, O3 meters, NH3 meters, CO meters, O2 meters, alcohol detectors, and mental detectors.

Q:Why should you buy from us instead of other suppliers?

We accept customized OEM/ODM orders, provide a one-year warranty and lifetime service, accept third-party inspections, and independently develop and produce our products.

Q:What services can you provide?

We accept various delivery terms (FOB, CIF, etc.), payment currencies (USD, HKD, CNY), and payment types (T/T, L/C, PayPal, etc.). We speak English and Chinese.