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4-20mA with Safety Explosion Proof Sound Alarm LPG CH4 Methane Gas Detector
US$90.00
5-49 Pieces
US$85.00
50-99 Pieces
US$75.00
100+ Pieces
Product profile
Customization
AvailableBrand
Hanwei ElectronicsCustomized
CustomizedModel NO.
GTQ-BS02Portable
Non PortableCertification
ATEXGas
CH4Type
Fixed Gas DetectorModel No
Gtq-BS02Measuring Gas
Combustible Gas, Toxic GasSample Method
Diffuse NaturallyPower
DC24V±6V, ≤3.0WElectrical Output
4-20mA or PbusRelays
2 Relays (Free Contact)Operation by
IR Remote ControlEx Grade
II 2 G Ex dB Iic T6/T5 GBIngress Protection
IP66/67Enclosure Material
Aluminum Alloy (Optional Stainless Steel)Dimensions
130mm X 154mm X 83mmWeight
About 1.2kg (4.5kg for Stainless Steel)Transport Package
CartonOrigin
China MainlandProduction Capacity
50000pieces/YearKey features
High Accuracy Sensor: Adopts high-performance gas sensor and MCU technology for high accuracy and good repeatability.
Dual Output Options: Provides 4-20mA analog output or FBUS digital output for flexible system integration.
ATEX Certified: Certified with ATEX, CE, EN, BSI, UL, and ISOD standards for safety and compliance.
IR Remote Control: Features non-contact operation via infrared remote control for convenient maintenance.
IP66/67 Protection: High ingress protection rating ensures reliable performance in harsh industrial environments.
Customizable Enclosure: Enclosure material is optional, available in Aluminum Alloy or Stainless Steel.
Long Service Life: Designed for long lifespan with stable performance and smart sensor module free of calibration.
Industrial Application: Widely used in petroleum, chemical, metallurgical, and power industries for gas detection.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service AvailableExport Year: 2008-02-05 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.01h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryHANWEI ELECTRONICS GROUP CORPORATION is a China-based public company headquartered in Zhengzhou, Henan, established in 1998, with 657 employees. It specializes in gas sensors, gas detectors, alarms, meters, and related products, and supplies CO2 and NH3 gas-analysis equipment. The supplier reports ISO9001:2015 and ISO14001:2015 certifications, six production lines, 235 years of combined R&D-engineer experience, and gas-detector output of 50,000 pieces. It serves domestic and international markets and states that OEM and ODM orders are welcome. Evidence supports established manufacturing, product specialization, certification, and customization potential. However, the provided information does not sufficiently establish after-sales performance, financial credibility, or documented customer cases. Export-sales share is stated as 1%–10%, while trade evidence includes one transaction associated with a buyer in Uzbekistan.
Supplier typeThe supplier is identified as a public company from China, established in 1998, with 657 employees and a product portfolio centered on industrial and domestic gas detection, gas alarms, sensors, meters, and breathalyzers. Its stated specialization in gas-sensor and gas-detector R&D and mass production supports classification as a specialized manufacturer rather than a general trading company.
CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 management-system certificates. It also states that some products are for CE and TUV approval, but the slices do not confirm that all relevant products hold those approvals.
R&D capabilityInnovation capability is supported by the supplier's stated focus on developing and manufacturing its own gas sensors, its gas-detection R&D specialization, and 235 years of total R&D-engineer experience. Its product range includes portable, fixed, smart, combustible-gas, carbon-monoxide, and system-level detection products.
Production capacityThe supplier reports 657 employees, six production lines, and annual gas-detector productivity of 50,000 pieces. It also states a one-month off-peak lead time and peak-season fulfillment within 15 working days, providing explicit evidence of organized production capacity and stated delivery capability.
Customization capabilityThe supplier explicitly welcomes OEM and ODM orders and states that it can provide technical service and design projects to meet local customer requirements. This directly supports customization capability, although the slices do not specify minimum order quantities, engineering workflow, or customization limits.
Product Q&A
Q:Why choose your company?
A:
We are a professional manufacturer with seasoned engineers having over 20 years' experience in gas detection, offering same quality at best prices.
Q:Can I have a sample order?
A:
Sample orders for testing are welcomed at the first time.
Q:What certifications do you have?
A:
We have CE, EN, BSI, UL, ISOD and other certifications.
Q:How do I get price information?
A:
Sales representatives will provide detailed price information within 1 workday after receiving your inquiry.
Q:What is the best price for large quantities?
A:
Please send a detailed enquiry including model number, quantity, quality requirements, logo, and payment terms for an accurate quotation.
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HANWEI ELECTRONICS GROUP CORPORATION
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