The buried pipeline gas leak monitoring terminal utilizes the laser principle to accurately detect methane gas leaks, and incorporates a unique temperature and humidity compensation algorithm and phase
Utilizing patented technology, this advanced instrument minimizes the impact of environmental temperature and humidity on detection results. Based on technologies such as NB-IoT, it features wireless uploading capabilities and is designed for monitoring the combustible gas concentration in urban underground gas pipeline networks



GWRANGQI Series
Buried pipeline network gas leak monitoring terminal
Model: YQDR Key Features: Intrinsic Safety and Explosion-Proof, Buried Installation, Optional Camera Integration, Battery-Powered, Wireless Transmission
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Product Overview
Application Scenarios
Product Features
Explosion-proof certification: Ex ia IIC T4 Ga Small in size, easy to install Modular design facilitates maintenance Industrial-grade processor, high reliability, suitable for harsh outdoor environments Multiple installation methods, suitable for use in various environments Supports one-click reset and one-click restart in case of equipment malfunction Utilizing high-performance replaceable lithium batteries, it eliminates the need for mains power supply, facilitating easy installation.Product Specifications
| Monitored gas: | CH4 |
| Monitoring principle: | Laser TDLS |
| Sampling method: | Default 30 minutes (adjustable) |
| Monitoring range: | 0-100%LEL |
| Monitoring accuracy: | ±3%LEL |
| Alarm concentration: | 10% LEL (configurable) |
| Response time: | ≤30s |
| Protection level: | IP68 |
| Explosion-proof grade: | Ex ia IC T4 Ga |
| Transmission mode: | NB-loT |
| Operating voltage: | 3.6V (powered by lithium battery) |
| Battery operating time: | Endurance time ≥ 36 months |
| Operating temperature range: | Catalytic combustion: -40℃~70℃ Infrared: -10℃~50℃ Laser: -10℃~50℃ |
| Operating humidity range: | ≤98%RH (no condensation) |
| Data storage: | 1000 entries (20 days of data storage) |
| Export of historical data: | Bluetooth 5.2 supports SPP, GATT, and HID protocols |
| GPS positioning: | <5m |
| Abnormal alarm: | Gas leakage, low battery voltage, water immersion alarm, etc. |
| Alarm mode: | Upload alarms to the cloud platform |
| Installation method: | Buried installation, pile-mounted installation |
| Factory calibration: | Executive standard: GB15322.1 |
Gas Factors Detectable by This Product
These are the gas factors this model supports. Click to see detailed product compatibility (600+ factors →)



