What is the after-sale service policy?

We provide a 12-month warranty for all kinds of products.

What gases can this detector measure?

It can continuously detect combustible, oxygen, carbon monoxide, hydrogen sulfide, and other toxic gases in ambient air.

What is the explosion-proof grade?

The explosion-proof grade is Ex ib IIB T3 Gb with the number CNEx18.4929X.

CD4 Underground Mining Use Explosive Proof 4 in 1 Multi-Gas Detectors

Name: CD4 Underground Mining Use Explosive Proof 4 in 1 Multi-Gas Detectors
Brand: Henan Zhong An Electronic Detection Technology CO.,LTD
SKU: 2208258945

Henan, ChinaHenan Zhong An Electronic Detection Technology CO.,LTD

US$185.00

1-299 Sets

US$165.00

300-499 Sets

US$145.00

500+ Sets

Sample price:US$185.00/set.Request sample

Product profile

Customization

Available

After-sales Service

Yes 24 Hours Online Service

Warranty

1 Year

Model NO.

CD4

Brand

Zhongan

Customized

Portable

Certification

FCC, CE, RoHS, ATEX, IP, ISO, SGS

Gas

CO2

Type

Electrochemical Gas Analyzer

Detection Principle

Catalytic/Electrochemical/Semiconductor/Infrared

Gas Detected

Combustible Gas, Toxic Gas

Sampling Mode

Natural Diffusion

Protection Level

IP66

Operating Temperature

-20℃ to 50℃

Accuracy

±3% Fs

Pressure Limit

86kpa to 106kpa

Delivery Time

3-15 Days

MOQ

1 Set

Transport Package

Flight Case

Specification

18.5*18*8cm

Trademark

ZhongAn

Origin

China

HS Code

9027100090

Production Capacity

100000

Key features

Multi-Gas Detection Capability: Detects up to 5 gases simultaneously including combustible, oxygen, CO, H2S, and toxic gases.

Explosion-Proof Design: Meets Ex ib IIB T3 Gb standards with IP65 protection for safe use in harsh underground environments.

Pump Suction Sampling: Uses high-quality sensors with pump-suction mode for accurate and sensitive gas detection.

Customization Support: Supports OEM/ODM services with customizable detection principles, gases, and sampling modes.

Long Battery Life: Powered by a 2000mAh DC 3.7V lithium battery for reliable continuous operation.

Comprehensive Certifications: Certified by CE, RoHS, FCC, ATEX, IP, ISO, and SGS for global compliance and safety.

User-Friendly Interface: Features intuitive graphic and text LCD display with simple operation and high reliability.

Professional Manufacturer: Direct from a large professional gas detector manufacturer with 12 years of experience.

Company profile

Fast DeliveryQuality AssuranceIn-stock CapacityOEM Services

Henan Zhong An Electronic Detection Technology CO.,LTD

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 7 years CertifiedNearest Port: Zhengzhou PortAverage Response Time: ≤1.28h

AI-Powered supplier vetting

SummaryZhongAn presents evidence of quality and management certifications, including ISO9001:2015, CE, RoHS, and FCC. It reports structured finished-product inspection, 11 quality assurance/control inspectors, in-stock capability, and order lead times within 15 workdays in both peak and off-season periods. The supplier provides extensive customization, ODM, and OEM services, and reports new products within the past year. After-sales support is described as available 24 hours daily with technical guidance and maintenance, but no written complaint-handling, corrective-action, or service-assessment procedures are documented. Overseas service infrastructure is limited: there are no overseas agents, branches, warehouses, showrooms, or stated countries served. Financial credibility cannot be assessed from the provided slices because the financial entries identify years but provide no financial results. Customer cases are not explicitly documented.

Supplier typeThe supplier provides ODM, OEM for well-known brands, and multiple forms of customization. Its stated export-sales share is 51%–70%, indicating international commercial activity, although the slices do not explicitly identify its legal supplier classification or manufacturing business type.

CertificationsThe supplier states that quality is certified by international authorities and identifies ISO9001:2015, CE, RoHS, and FCC certifications. These are explicit certification holdings or capabilities in the provided information.

After-Sales capabilityThe supplier states that it has a professional after-sales team offering installation, commissioning, technical guidance, maintenance, and 24-hour online response. However, it has no written complaint-handling, corrective/preventive-action, or service-capability assessment procedures, and no overseas agents, branches, warehouses, or showrooms.

R&D capabilityThe supplier reports new products within the past year and offers ODM services, demonstrating stated product-development activity. It has no available SDK, but the available evidence still supports innovation capability for product development and design services.

Production capacityThe supplier reports 11 quality assurance/control inspectors, documented and uniformly followed finished-product inspection instructions, in-stock capability, and lead times within 15 workdays in both peak and off-season. However, it reports no valid manufacturing-capacity contract with affiliated subcontractors and has no written service-capability assessment procedure.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM availability, providing strong direct evidence of customization capability.