How do you guarantee product quality?

We conduct a pre-production sample check before mass production and a final inspection before shipment.

What are the accepted payment terms?

We accept T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Western Union, and Cash.

What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Time

Name: Multi-Function Formaldehyde Detector Temperature & Humidity Meter Monitoring Hcho/Tvoc/Pm2.5/Pm10/CO2/Aqi/Time
Brand: Shenzhen Langdeli Technology Co., Ltd.
SKU: 2090062535

Guangdong, ChinaShenzhen Langdeli Technology Co., Ltd.

US$50.00

2-99 Pieces

US$48.00

100-999 Pieces

US$45.00

1,000+ Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Model NO.

DM197

Brand

Dienmern

Customized

Portable

Certification

FCC, CE, RoHS

Gas

Hcho Tvoc

Type

Electrochemical Gas Analyzer

Material

ABS

Color

Black

Pm2.5 Sensor Technolology

Laser Scattering

CO2 Technology

Infrared (Ndir)

Hcho/Tvoc Technology

Semiconductor Sensor

Temperature Unit

Switch Between Celcius and Fahrenheit

Power Supply

Rechargeable Li-Battery 3000mAh

What Are Included

Main Unit+ Manual+Type-C USB Charging Cable

Transport Package

Neutral Box

Specification

188*42*88MM

Origin

Zhongshan, China

HS Code

9027100090

Production Capacity

50000 Pieces/Year

Key features

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

Customizable Design: Customized Material (ABS), Color (Black), and Sensor Technologies available.

Portable & Desktop Use: Compact portable design with ABS hard shell, suitable for desktop placement.

Certified Quality: Products certified with FCC, CE, and RoHS standards for safety and compliance.

Rechargeable Battery: Powered by a 3000mAh rechargeable Li-Battery with Type-C USB charging.

Lifetime Service Support: Provides one-year warranty and lifetime technical service for customers.

Company profile

Shenzhen Langdeli Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2013-05-17Nearest Port: shenzhenAverage Response Time: ≤10.02hTerms 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.