What are the relay outputs?

The detector features 2 free contact relays and 1 active relay.

Electrochemical Gas Sensor Detector O2 Oxygen 4-20mA Output Iecex

Name: Electrochemical Gas Sensor Detector O2 Oxygen 4-20mA Output Iecex
Brand: HANWEI ELECTRONICS GROUP CORPORATION
SKU: 2130558492

Henan, ChinaHANWEI ELECTRONICS GROUP CORPORATION

US$115.00

2-49 Pieces

US$100.00

50-99 Pieces

US$90.00

100+ Pieces

Product profile

Customization

Available

Brand

Hanwei Electronics

Customized

Model NO.

GTQ-BS03

Portable

Non Portable

Certification

ATEX

Gas

NH3

Type

Fixed Gas Detector

Measuring Gas

Combustible Gas, Toxic Gas

Sample Method

Diffuse Naturally

Power

DC24V±6V, ≤2.5W

Response Time

Lel: T90≤15s Toxic Gas: T90≤30s

Electrical Output

4-20mA or Pbus

Relays

2 Free Contact, 1 Active Relay

Operation by

IR Remote Control

State Indication

Yellow--Fault, Red--Alarm, Green--Power

Operating Temperature

Lel: -40~70℃ Toxic: -20~50℃

Humidity

≤95%Rh (No Condensation)

Ambient Pressure

86kpa~106kpa

Ex Grade

Ex D Iic T6 GB / Ex Td A21 IP67 T80℃

Ingress Protection

IP67

Enclosure Material

Aluminium Alloy

Dimensions

130mm X 154mm X 95mm

Transport Package

Carton

Origin

China Mainland

Production Capacity

100000pieces/Year

Key features

High Accuracy & Stability: Adopts high-performance gas sensor and MCU technology for good repeatability and long lifespan.

Flexible Output Options: Supports 4-20mA analog output or FBUS digital output for versatile system integration.

Smart Sensor Module: Features smart sensor module that is free of calibration and easy to maintain.

IR Remote Control: Enables non-contact operation via infrared remote control for user convenience.

Robust Protection: IP66/67 ingress protection and aluminum alloy enclosure (optional stainless steel).

Multi-Gas Detection: Detects Combustible gas, Toxic gas, O2, VOC, CO2, and Freon with high accuracy.

Industrial Certification: Certified with ATEX, CE, EN, BSI, UL, and ISOD for global industrial safety standards.

Wide Application Scope: Widely used in petroleum, petrochemical, chemical, metallurgical, and power industries.

Company profile

HANWEI ELECTRONICS GROUP CORPORATION

Henan, China

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.