What is the warranty period?

The product comes with a 1-year warranty.

What is the power supply requirement?

It requires a DC 12-24V power supply.

4-20mA RS485 Compact Thread Type 25% Range O2 Electrochemical Oxygen Gas Sensor

Name: 4-20mA RS485 Compact Thread Type 25% Range O2 Electrochemical Oxygen Gas Sensor
Brand: Hefei Siko Instruments Co., Ltd.
SKU: 2142493392

Anhui, ChinaHefei Siko Instruments Co., Ltd.

US$100.00-150.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Maintenance & Refund

Warranty

1 Year

Model NO.

HG-FGD Fixed Gas Detector

Brand

Siko Instruments

Customized

Portable

Certification

FCC, CE, RoHS

Gas

CO2

Type

Electrochemical Gas Analyzer

Gas Detect

Method

Electrochemical / Infrared / Catalytic Combustion

Accuracy

3%F.S.

Response Time

T90 < 30s

Linearity

≤ ±2

Reapeatibility

≤ ±2

Recover Time

≤ 30s

Operating Humidity

< 95%Rh Non-Condensing

Operating Temperature

'-20 - 50 Deg.C

Power Supply

DC 12-24V

Communication

RS485 Mod_Bus / Analog

Explosion Proof

Exd II CT6

Keywords & 1

Electrochemical Oxygen Sensor

Keywords & 2

Electrochemical Oxygen Gas Sensor

Protection

IP65

Transport Package

2kg

Specification

15*15*20cm

Trademark

Siko Instruments

Origin

China

HS Code

9027100090

Production Capacity

999 Units / Weeks

Key features

Explosion-Proof Housing: Cast aluminum housing with Exd II CT6 rating for harsh environments.

Wide Gas Detection Range: Detects O2, CO2, CO, H2S, and other gases with high precision.

RS485 Communication: Supports RS485 Modbus and Analog interfaces for long transmission.

Fast Response Time: T90 response time is less than 15 seconds for most gases.

Customization Support: OEM and ODM services available for specific gas detection needs.

Durable Design: IP65 protection rating with isolated electrical parts.

Low Power Consumption: Power consumption is less than 1W for energy efficiency.

Company profile

Hefei Siko Instruments Co., Ltd.

Anhui, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤5.28h

AI-Powered supplier vetting

SummaryHefei Siko Instruments Co., Ltd. is identified as both a trading company and manufacturer/factory in China. It supplies flow meters, sensors, transducers, and related industrial instrumentation. The supplier reports ANSI/ESD and ISO 9001 certifications, 11–20 R&D engineers, 11–20 quality-control staff, and five production lines. It has self-operated import/export rights, began exporting in 2020, and reports exports as 71%–90% of sales, with broad global market coverage. Evidence confirms manufacturing, quality-management certification, international trade capability, and established product expertise. However, the provided information does not substantiate after-sales processes, financial credibility, customization services, or a broad customer track record.

Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory. Its stated business covers instruments, meters, industrial equipment, flow measurement technology, sensors, and transducers, indicating a direct manufacturing and trading role in industrial instrumentation.

CertificationsThe supplier reports ANSI/ESD and ISO 9001 certifications for its management systems. These stated certifications provide explicit evidence of formal quality or operational controls, although no certificate scope, issuing body, or validity details are supplied.

R&D capabilityThe supplier offers multiple flow-measurement and sensing technologies and reports 11–20 R&D engineers, indicating an established technical development function. However, no patents, proprietary technologies, new-product records, or R&D outcomes are provided.

Production capacityThe supplier is identified as a manufacturer/factory with five production lines, 11–20 quality-control staff, and stated product coverage in flow measurement and industrial instrumentation. It also reports an off-peak lead time of one month and peak fulfillment within 15 workdays, supporting evidence of operating production capacity, although actual capacity limits are not disclosed.

Product Q&A

Q:What gases can this sensor detect?

It can detect Oxygen, Carbon Dioxide, Carbon Monoxide, Hydrogen Sulfide, Ammonia, Ozone, Nitrogen Dioxide, Sulfur Dioxide, Formaldehyde, and Combustible Gas.

Q:What is the response time?

The response time (T90) is less than 15 seconds for most gases.

Q:Is the sensor explosion-proof?

Yes, it features a cast aluminum housing with an Exd II CT6 explosion-proof grade.

Q:What is the communication interface?

It supports RS485 Modbus and Analog interfaces.

Q:Can I customize the gas detection range?

Yes, OEM and ODM customization support is available for specific requirements.