Close
  • Shopping Cart 0
    You have no items in your shopping cart.
  • Register
  • Log in
  • Wishlist
  • Shopping cart
GasDog.com
0
Close
  • Home
  • Support
    • Back
    • Installation Guide
    • Wiring Guide
    • FAQs
    • Manual Downloads
    • Video Library
  • Case Studies
  • Contact Us
  • Shop
    • Back
    • Industrial Gas Detectors
      • Back
      • Portable Gas Detectors
      • Fixed Gas Detectors
      • Multi Gas Detectors
      • Combustible Gas Detectors
      • Toxic Gas Detectors
      • VOC Gas Detectors
    • Home Gas Detectors & Alarms
Menu
  • Home
  • Support
    • Back
    • Installation Guide
    • Wiring Guide
    • FAQs
    • Manual Downloads
    • Video Library
  • Case Studies
  • Contact Us
  • Shop
    • Back
    • Industrial Gas Detectors
      • Back
      • Portable Gas Detectors
      • Fixed Gas Detectors
      • Multi Gas Detectors
      • Combustible Gas Detectors
      • Toxic Gas Detectors
      • VOC Gas Detectors
    • Home Gas Detectors & Alarms
Close
  • Home /
  • Shop /
  • Industrial Gas Detectors /
  • Fixed Gas Detectors /
  • Fixed Nitrogen (N2) Gas Detector
Fixed Nitrogen (N2) Gas Detector
Fixed Nitrogen (N2) Gas Detector Fixed Nitrogen (N2) Gas Detector Fixed Nitrogen (N2) Gas Detector Fixed Nitrogen (N2) Gas Detector Fixed Nitrogen (N2) Gas Detector

Fixed Nitrogen (N2) Gas Detector

$741.57
| 0 review(s) | Add your review
Buy fixed N2 gas detector online, measuring range 0-100% VOL, with remote control and real-time display. This GasDog gas detector can be installed in pipelines and confined spaces for detecting and monitoring Nitrogen concentration 24 hours online.
Free shipping
Delivery date: 6-12 days
SKU: GD300-N2
*
*
*
*
*
increase decrease
  • DESCRIPTION
  • SPECIFICATIONS
  • DOCUMENTS

Gas Monitor for N2 Detecting

Fixed N2 gas detector comes with an advanced sensor and a sound & light alarm for monitoring the Nitrogen gas concentration accurately in different kinds of confined spaces or pipelines.

Basic Parameters:
  • Model: GD300-N2
  • Detection Principle: Electrochemistry
  • Gas: Nitrogen (N2)
  • Range: 0-99.99% VOL, 0-100% VOL
  • Resolution: 0.01% VOL, 0.1% VOL
  • Accuracy: ≤±3% F.S.
  • Explosion-proof Grade: Ⅱ 2G Ex ia Ⅱ CT4 Ga
  • Certification: CE, ATEX
  • Warranty: 12 months

01

Nitrogen Detector

Features

Industrial grade explosion proof certification for fixed gas detector

Explosion Proof Certification

Available in ATEX Industrial Explosion-proof Certification

Sound and light alarm

Sound & Light Alarm

Set the Alarm Point According to Your Needs

Anti-magnetic interference

Anti-Magnetic Interference

Can Resist Strong Magnetic Interference of 15V/m

Die-cast aluminum material

Die-cast Aluminum Material

Sturdy and Durable, Anti-Rust and Anti-Corrosion

 

02

Why Choose

Our Gas Detector?

Fixed gas detector with infrared remote control

Fixed Single Gas Detector

- Nitrogen Leak Detector

 
  • ✔️ Built-in high precision sensor for accurate gas leak detection.
  • ✔️ Explosion-proof design, two-stage alarm with sound and light, and the alarm point is settable.
  • ✔️ Optional 3-wire system 4-20mA analog output, relay output or RS485 output.
  • ✔️ 24-hour real-time online monitoring of gas concentration.
  • ✔️ Compatible with various controlled alarm, PLC, DCS and other control systems.
  • ✔️ The infrared controller can remotely control the alarm point setting, zero calibration and address modification.
  • ✔️ GasDog fixed gas detector has a self-calibration function and uses three standard buttons for on-site maintenance.
  • ✔️ One or two on/off signals can be output to drive a fan, solenoid valve or other external equipment.

03

More Info.

Applications

Fixed single gas detector for gas pipeline

Gas Pipeline

Fixed gas detector for hospital sterilization room

Hospital Sterilization Room

Fixed gas detector for industrial manufacture

Industrial Manufacture

Fixed gas detector for petrol station

Petrol Station

Gas Detection Q&A - For Your Safety Environments

Built-in advanced gas detector sensor and sound & light alarm to ensure precise and safe gas detection in hazardous applications.

Q: What happens when Nitrogen gas leaks?

A: When N2 gas leaks, it can pose various risks depending on the concentration, location, and duration of the leak. Nitrogen gas itself is not toxic, but it can displace Oxygen in the air, leading to O2 deficiency, which can be harmful or even fatal in certain circumstances. Here's what typically happens when Nitrogen gas leaks:

  • Oxygen Depletion: N2 is an inert gas, which means it does not react with other substances in the air. When a leak occurs, Nitrogen can displace the Oxygen in the surrounding air, reducing the Oxygen concentration. If the O2 levels drop below the safe threshold (usually below 18% oxygen content in the air), it can lead to symptoms of oxygen deficiency, such as dizziness, shortness of breath, confusion, loss of consciousness, and in severe cases, death.
  • Fire and Explosion Hazard: N2 itself is not flammable, but if it displaces O2 in an enclosed space, it can create conditions where other flammable gases become more volatile, potentially increasing the risk of fire or explosion.
  • Cold Hazard: Nitrogen gas is often stored at very low temperatures, typically in a liquid state (Cryogenic Nitrogen). A leak of Cryogenic Nitrogen can cause severe cold burns or frostbite upon contact with skin or other surfaces.

To detect Nitrogen gas leaks and mitigate the associated risks, GasDog portable N2 gas detector and fixed N2 gas detector can be useful. These detectors are designed to monitor the concentration of Nitrogen gas in the air and provide warnings when the levels are outside of safe limits. They can alert personnel to take appropriate actions, such as evacuating the area, ventilating the space, or addressing the source of the leak.

Model GD300-N2
Detection Principle Electrochemistry
Gas Nitrogen (N2)
Note* 1. It is recommended that this N2 gas detector only detects a single Nitrogen environment or only N2 and O2 in the environment, as well as Nitrogen leakage in normal air. If you are monitoring other gases mixed with N2, please contact us before purchasing.
2. Nitrogen detectors cannot do zero point calibration in air, only do target calibration (the target concentration is the standard concentration value in clean air).
Range (Optional) 0-99.99% VOL, 0-100% VOL
Resolution 0.01%VOL (0-99.99%VOL), 0.1%VOL (0-100%VOL)
Calibration Kit Gas pressure regulator (calibration gas cylinder NOT included)
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.

Dimension (Unit: mm)

Fixed gas detector dimension

GasDog Gas Detectors Catalogs

GasDog Gas Detector Catalog GD200 Portable Gas Detectors GD300 Online Fixed Gas Detectors GD400 Explosion Proof Portable Gas Detectors GD500 Handheld Multi Gas Detectors GD600 Multi Gas Analyzer GD700 Industrial Fixed Gas Detectors

GasDog Gas Detectors User Manuals

GD200 Portable Gas Detector User Manual GD300 Fixed Gas Detector User Manual GD400 Explosion Proof Gas Detector User Manual GD600 Multi Gas Analyzer User Manual GD700 Industrial Fixed Gas Detector User Manual

GasDog Gas Detector Controller User Manuals

GD900-4C Gas Detector Control Panel User Manual GD900-32C Gas Detector Control Panel User Manual

GasDog Communication Protocol

Gas Detector Communication Protocol V1.0

Portable Gas Detector Calibration Accessories - Gas Pressure Regulator

GasDog Single Stage Pressure Regulator User Manual

Gas Detector Data Downloading Operation Instruction

Gas Detector Data Downloading Operation Instruction

Gas Detector Software

GasDog Portable Gas Detector DataExport Software
WRITE YOUR OWN REVIEW
*
*
RELATED GAS DETECTORS
Fixed Carbon Dioxide (CO2) Gas Detector Fixed Carbon Dioxide (CO2) Gas Detector Fixed Carbon Dioxide (CO2) Gas Detector Fixed Carbon Dioxide (CO2) Gas Detector Fixed Carbon Dioxide (CO2) Gas Detector

Fixed Carbon Dioxide (CO2) Gas Detector

GD300-CO2
Fixed CO2 gas detector is used for Carbon Dioxide detection, with measuring range 0-1000/2000/5000/9999ppm and 0-1%/5%/100% VOL. GasDog wall mounted gas detector has sound & light alarm and real time display, which can monitor Carbon Dioxide leak 24 hours online.
$755.99
Fixed Hydrogen (H2) Gas Detector Fixed Hydrogen (H2) Gas Detector Fixed Hydrogen (H2) Gas Detector Fixed Hydrogen (H2) Gas Detector Fixed Hydrogen (H2) Gas Detector

Fixed Hydrogen (H2) Gas Detector

GD300-H2
Fixed Hydrogen gas detector for sale. It comes with sound & light alarm, optional measuring range 0 to 500/1000/2000/5000ppm, max 10000ppm. This H2 monitor supports remote control for monitoring Hydrogen concentration 24 hours online in the confined space or pipeline.
$633.79
 Portable Hydrogen Sulfide (H2S) Gas Detector  Portable Hydrogen Sulfide (H2S) Gas Detector  Portable Hydrogen Sulfide (H2S) Gas Detector  Portable Hydrogen Sulfide (H2S) Gas Detector  Portable Hydrogen Sulfide (H2S) Gas Detector  Portable Hydrogen Sulfide (H2S) Gas Detector  Portable Hydrogen Sulfide (H2S) Gas Detector

Portable Hydrogen Sulfide (H2S) Gas Detector

GD200-H2S
The provided yellow Hydrogen Sulfide gas detector is suitable for monitoring H2S concentration. GasDog portable single gas monitor features a gas sensor and light, sound & vibration alarms, available with a range of 0-50ppm, 0-100ppm, 0-200ppm, and 0-500ppm.
$476.65
Industrial Fixed Methane (CH4) Gas Detector Industrial Fixed Methane (CH4) Gas Detector Industrial Fixed Methane (CH4) Gas Detector Industrial Fixed Methane (CH4) Gas Detector Industrial Fixed Methane (CH4) Gas Detector Industrial Fixed Methane (CH4) Gas Detector

Industrial Fixed Methane (CH4) Gas Detector

GD700-CH4
Fixed CH4 gas detector for sale online. This industrial gas monitor with a measuring range of 0-100% LEL, 0-50%, 0-100% VOL, features a sensitive gas sensor and remote control for detecting and monitoring Methane gas concentration.
$2,052.89
"Gas Dog: Gas Detection is as Accurate as a Sniffer Dog's Nose."
INFORMATION
  • About Us
  • Shipping & Returns
  • Warranty
  • Privacy Notice
  • Conditions of Use
RESOURCE
  • Blog
  • VOC Gases
  • Toxic Gases
  • Combustible Gases
  • Solutions
  • Case Studies
CUSTOMER SERVICE
  • Support
  • Buying Guide
  • Price List
  • Become a Dealer
  • Contact Us
FOLLOW US
PAYMENT OPTIONS
Copyright © 2025 GasDog.com. All rights reserved.