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Fixed Nitrogen Dioxide (NO2) Gas Detector, 0 to 10/100/500/1000 ppm

The fixed nitrogen dioxide (NO₂) gas detector is engineered for reliable, real-time monitoring of NO₂ concentrations. Designed with versatility and precision in mind, it offers multiple measurement ranges to suit your needs, from 0–1 ppm to 0–1000 ppm. Whether you’re monitoring low-level exposure or high-concentration environments, this detector provides the accurate readings necessary to safeguard health and ensure operational safety.
SKU: GD300-NO2
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$734.87
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🚚 Free shipping
🔙 30-day returns
📅 Delivery: 7-12 days
Overview


The fixed nitrogen dioxide gas detector is designed for 24/7 operation, featuring real-time monitoring and instant alerts to notify you when NO₂ levels exceed safety thresholds, helping you maintain a safe environment.

sisco fixed gas detector

Anti-magnetic interference

  • The fixed nitrogen dioxide gas detector supports 4-20mA analog output, relay output, or RS485 digital output for easy system integration.
  • SISCO fixed nitrogen dioxide gas detector features a durable explosion-proof design, ensuring safe operation in hazardous environments.
sisco fixed gas detector

Using high-precision sensors

  • The fixed nitrogen dioxide (NO2) gas detector is equipped with an infrared remote control as standard, which can realize the functions of alarm point setting, zero point calibration, and address modification without opening the cover.
  • Compatible with various control alarms, PLC, DCS and other control systems to realize remote monitoring.
sisco fixed gas detector

Variety of installation methods

  • Wall mounted type, installed on the wall directly, real time monitoring.
  • Piping type, installed on the pipeline, monitoring the gas concentration inside.
  • Flow type, connected with external sampling pump and tube, measure the gas concentration in enclosed space.

Applications

Fixed Nitrogen Dioxide (NO2) online gas detector can detect harmful gas of furniture, flooring, wallpaper, paint and other items, which is widely used in biological pharmaceutical factories, green home, livestock and poultry breeding, greenhouse cultivation, warehousing and logistics, brewing and fermentation, agricultural production, etc.

Fixed online gas detector application

Specs
Model GD300-NO2
Detection Principle Electrochemistry
Gas Nitrogen Dioxide (NO2)
Range (Optional) 0 to 1ppm, 0 to 5ppm, 0 to 10ppm, 0 to 20ppm, 0 to 50ppm, 0 to 100ppm, 0 to 500ppm, 0 to 1000ppm
Calibration Kit Gas pressure regulator (calibration gas cylinder NOT included)
Resolution 0.001ppm(0-1/5ppm), 0.01ppm (0-10/20/50ppm), 0.1ppm (0-100ppm) 1ppm (0-500/1000ppm)
Accuracy ≤±3% F.S.
Response Time ≤10s
Repeatability ≤±1%
Recovery Time ≤10s
Linearity Error ≤±1%
Zero Shift ≤±1% (F.S./year)
Signal Output (Optional) 4-20mA and RS485
Relay output: one group of relay output (1NO+1NC, 24V 100mA) for one alarm (default), or two groups of relay output (2NO+2NC, 24V 100mA) for high/low alarm (optional).
Alarms Sound, light
Display High light nixie tube display
Installation Wall-mounted, piping type, flow-type (according to the detected environment)
Connection Power connection type: G1/2 male thread explosion-proof flexible pipe
Pipe-mounted type: M45*P2.0
Operating Time 24h
Explosion-proof Grade Ⅱ 2G Ex ia Ⅱ CT4 Ga
Protection Grade IP65
Certification CE, ATEX (Standard: EN IEC 60079-0:2018, EN 60079-1:2014)
Working Voltage 12-36V DC
Case Material Die-casting aluminum housing
Operating Temperature -20℃~50℃
Operating Humidity 0~95%RH (non-condensing)
Dimension 206*179*90mm
Weight ≤1.6kg
Accessories Power adapter: Input 100-240VAC 50/60Hz, Output 24VDC 1A (Optional USA plug, Europe plug or UK plug)

Note: To measure confined spaces such as pipelines, please contact us and inform the detailed conditions of use.

Fixed Gas Detector Dimension (Unit: mm)

Fixed gas detector with alarm dimension

FAQs

Q1: What is a fixed gas detector?
A1:
The fixed gas detector is composed of sensors and transmitters, and is installed at the detection site. The secondary instrument consisting of circuit, power supply and display and alarm device is installed in a safe place, which is convenient for staff to monitor. In industrial installations and production processes, fixed gas detectors are generally used, because fixed gas detectors can be installed at specific detection points to detect specific gas leaks.

Q2: What does a gas detector detect?
A2: Combustible gases: Natural gas (methane), liquefied gas, coal gas (hydrogen), acetylene, pentane, alkynes, acetone, toluene, alcohols, hydrocarbons, light oil, etc.
Toxic gases: Carbon monoxide, hydrogen sulfide, ammonia, chlorine, oxygen, phosphine, sulfur dioxide, hydrogen chloride, chlorine dioxide and other toxic and harmful gases.

Q3: Difference between fixed gas detector and portable gas detector
A3: The biggest advantage of fixed gas detectors is 24-hour uninterrupted measurement. As long as the power is turned on, the fixed gas detector is in normal detection work. Portable gas detectors are usually used in confined spaces and confined spaces, but the gas environment in these spaces is usually very complex, and there will be situations such as lack of oxygen and high concentrations of harmful gases.

Tips: Can the nitrogen dioxide detector handle extreme weather conditions?

Yes, the Nitrogen Dioxide (NO₂) Detector is designed to handle extreme weather conditions. It features a weather-resistant and explosion-proof casing, making it suitable for environments with high humidity, dust, or temperature fluctuations. To ensure optimal performance, install the detector in a well-ventilated area and follow the manufacturer's guidelines for maintenance.

Warranty

Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.


What is covered?

SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.


What is not covered?

  • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
  • Expendable parts.
  • Routine cleaning or normal cosmetic and mechanical wear.
  • Damage from misuse, abuse or neglect.
  • Damage from use of parts other than SISCO approved.
  • Damage from use outside the product’s usage or storage parameters.
  • Damage from use of parts not sold by SISCO.
  • Damage from modification or incorporation into other products.
  • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
  • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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