Favorable price nitrogen gas tester for sale, measuring nitrogen content from 0 to 100% VoL, equipped with 4-20mA and RS485 signal output, using wall-mounted, pipeline and other installation methods. N2 gas detector is equipped with audible and visual alarms, suitable for 24-hour on-line monitoring and real-time display of data on a bright display, suitable for fixed installation, small size and easy to carry.
Specification
| 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 |
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. |
| Responce Time |
≤10s |
| Repeatability |
≤±1% |
| Recovery Time |
≤10s |
| Linearity Error |
≤±1% |
| Zero Shift |
≤±1% (F.S./year) |
| Signal Output (Optional) Note |
4-20mA and RS485 Relay output: one group of relay output (1NO+1NC, 5A/30V) for one alarm (default), or two groups of relay output (2NO+2NC, 5A/30V) 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 db IIC T4 Gb |
| 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 |
| Power Adapter |
Input 100-240VAC 50/60Hz, Output 24VDC 1A (Optional USA plug, Europe plug, AU plug or UK plug) |
Fixed Gas Monitor User Manual
Gas Tester Functions
- This hydrogen gas detector adopts three-wire 4-20mA analog signal output, relay output, RS485 output (optional).
- The original imported sensors, with a unique infrared remote control function, non-contact operation and maintenance of hydrogen gas tester.
- Compatible with a variety of control alarms, PLC, DCS and other control systems, you can realize remote monitoring, gas monitoring is more accurate and reliable.
- Explosion-proof design, fast, credible and more stable.
- Full software auto-calibration function with temperature compensation can perfectly realize the compensation of gas concentration under different temperature environment.
Fixed N2 Gas Tester Details

Fixed Nitrogen Gas Tester with Alarm Dimension (Unit: mm)

Tips: Is the installation process of this nitrogen detector complicated?
The installation process is relatively simple, but should be completed by a qualified technician. Stationary nitrogen detectors usually need to be connected to a power supply and communication system and calibrated for the specific installation environment. Typically, the installation location should be in an area where nitrogen leaks are likely to be present and to ensure that the detector is able to cover the required detection range. A detailed installation guide is supplied with the gas detector to ensure correct wiring and mounting position so that the unit can optimally perform the monitoring task.