• SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor

SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor

- This Oxygen (O₂) sensor utilizes the RS485 communication mode and supports the standard Modbus RTU protocol, providing industrial users with a stable data transmission channel.
- It employs advanced infrared sensing technology for measuring oxygen concentration. This technology enables quick and sensitive responses, effectively overcoming the limitations of traditional electrochemical sensors, such as short lifespans and long-term drift issues.
- The sensor features a high protection rating of IP65. It offers excellent resistance to rain and snow while maintaining good air permeability, making it highly suitable for harsh industrial environments. The highdensity housing of the sensor is designed to be waterproof, dustproof, and resistant to aging, significantly extending the device's service life.
- It supports a wide voltage range of 10~30V DC power supply. Built-in protection functions against overcurrent, overvoltage, and reverse connection are integrated to ensure stable device operation.
- A PC-based configuration tool is provided, supporting local serial port login configuration and Modbus command configuration, which simplifies on-site installation and post-maintenance processes. This not only enhances construction efficiency but also reduces overall system operating costs.
- The sensor features a wall-mounted installation design, saving space and offering ease of use. It is equipped with a waterproof and breathable membrane to ensure accurate device measurements.
Mounting Type
Wall-mounted
Type
Smoke Detector, Gas Sensor, Air Quality Sensor
Accuracy
±0.8%rh
Output
RS485, 4-20mA, 5V, 0-10V
Response Time
10
Operating Temperature
-30℃-60℃
Voltage - Supply
9-36V
$78.35
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor
  • SW6-O2 Gas Transmitter RS485 Modbus RTU O2 Oxygen Sensor

Description

SW6-NO2-02 Industrial NO2 Sensor: Precision Monitoring for Harsh Environments

Elevate industrial safety and compliance with the SW6-NO2-02, a cutting-edge Nitrogen Dioxide (NO2) sensor designed for high-precision detection in demanding applications. Engineered to thrive in extreme conditions—from chemical plants to mining operations—this sensor combines robust durability with smart IoT integration, ensuring reliable real-time data for critical decision-making.

Why Choose the SW6-NO2-02?

I. Uncompromising Accuracy
  • Equipped with advanced sensing technology and imported chips, the sensor delivers precise NO2 concentration measurements (0–2000 ppm) with ±5% FS detection accuracy.
  • Resolutions as fine as 0.1ppm (20ppm range) ensure early detection of hazardous levels, safeguarding personnel and regulatory compliance.
     
II. Built Tough for Harsh Environments
  • IP65-rated enclosure protects against dust, rain, and snow, while withstanding temperatures from -40°C to 80°C.
  • Waterproof ceramic material and a built-in moisture-proof rubber strip prevent damage in humid or submerged conditions.

III. Flexible Communication & IoT Integration
  • Supports RS485 Modbus-RTU for wired industrial control systems and LoRaWAN for wireless transmission, enabling seamless integration into existing IoT architectures.
  • Dual-mode connectivity ensures cross-region data synchronization, ideal for remote monitoring in mines, factories, or urban air quality networks.

IV. Wide Power Compatibility & Low Energy Consumption
  • Operates on DC 9–36V power supply, adapting to diverse industrial setups while maintaining an average power consumption of just 0.18W.

V. Robust EMC Compliance
  • Certified to withstand electrical surges (IEC 61000-4-5), EFT (IEC 61000-4-4), and ESD (IEC 61000-2), ensuring stable performance in electrically noisy environments.

Key Features

Fast Response: ≤30 seconds for real-time monitoring.
High Stability: ≤2% signal drift per month, minimizing calibration needs.
User-Friendly Design: RS485 parameter configuration software simplifies setup; color-coded cables (black/brown for power, blue/yellow for communication) streamline installation. 

Applications

  • Mining: Monitor underground NO2 levels to prevent worker exposure.
  • Chemical/Pharmaceutical Plants: Detect leaks in production lines or storage areas.
  • Fertilizer Manufacturing: Ensure compliance with environmental regulations.
  • Smart Cities: Integrate into urban air quality networks via LoRaWAN.

Characteristics
Mounting Type
Nut Mounting
Model Number
SW6-NO2-02
Measurement Range
0~2000ppm
Description
Industrial Nitrogen Dioxide Sensor

Type

Reed Switch

Series

SW6

Features

Sensor

Place of Origin
Guangdong, China
Brand Name

SWIOTT

Theory

Transmitter

Output

RS485

Measurement Range
1~2000ppm
Supply Voltage
12-24Vdc
Response Time
≤30s
Termination Style

Connector

Average Power
0.18W
Communication interface
RS-485

Material

Ceramic

Size

120*120*50mm
Working principle
Gas Concentration Transmitter
Application scenario
Industrial Methane Sensor
Working Pressure
91~111kPa
Temperature Measurement Range
-40°C~80°C
Temperature Accuracy
±0.5°C

weight

30g

Operating voltage

12V


Future-Ready Industrial IoT Solution

The SW6-NO2-02 is more than a sensor—it’s a gateway to smarter, safer operations. Pair it with data loggers, gateways, or cloud platforms for centralized monitoring, predictive maintenance, and regulatory reporting.

Empower Your Operations with Precision and Reliability
Whether safeguarding workers in mines or ensuring compliance in chemical plants, the SW6-NO2-02 delivers unmatched performance. Contact us today to integrate this next-generation NO2 sensor into your industrial ecosystem!

SWIOTT Technology – Where Innovation Meets Industrial Resilience.


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