The Yaoan YA-D400 LED Fixed Gas Detector is designed for continuous industrial gas monitoring in areas where combustible gases, toxic gases or oxygen levels must be monitored reliably. Its modular sensor design supports interchangeable gas sensing configurations, making the detector suitable for a wide range of industrial safety applications.
The YA-D400 LED version features a clear digital display with enlarged characters and distinct visual indication between normal and alarm conditions, helping operators identify gas concentration and detector status quickly. According to Yaoan, the detector can be configured for gases including CH4, H2S, CO, O2, CO2 and VOC, depending on the installed sensor.
Designed for demanding environments, the detector features an IP67-rated die-cast aluminium enclosure and explosion-proof construction. The product information supplied for the YA-D400 specifies 24 V DC operation, wall or pipeline installation and support for industrial outputs including 4–20 mA and Modbus communication.
The sensor module is designed for simplified maintenance and can be replaced without complicated disassembly. The supplied product information also highlights integration with Yaoan Cloud for real-time remote monitoring and automatic alarm data uploads, providing a practical solution for connected industrial gas safety systems.
Features
- Plug and Play Sensor Module: Interchangeable sensor design supports multiple gas types and simplifies sensor replacement.
- Simplified Maintenance: Replaceable sensor modules help reduce complicated dismantling and servicing procedures.
- Clear LED Display: Large digital characters provide easy gas concentration and operating-status visibility.
- Multiple Gas Detection: Suitable for combustible gases, toxic gases and oxygen monitoring depending on sensor configuration.
- Industrial Protection: IP67-rated enclosure helps protect against dust and water ingress.
- Explosion-Proof Design: Designed for industrial environments where gas safety and equipment protection are essential.
- Flexible Installation: Supports wall-mounted and pipeline-mounted installation.
- Industrial Communication: Available with 4–20 mA and Modbus communication for integration with monitoring and control systems.
- Smart Connectivity: Supports integration with Yaoan Cloud for remote monitoring and alarm-data transmission.
- Wide Industrial Application: Suitable for factories, processing facilities, storage areas and other locations requiring fixed gas monitoring.
Specifications
| Specification |
Details |
| Brand |
Yaoan |
| Model |
YA-D400 |
| Version |
LED Version |
| Product Type |
Fixed Gas Detector |
| Detection Object |
Combustible Gas Toxic Gas Oxygen |
| Detection Method |
Diffusion |
| Temperature Range |
-40°C to 70°C |
| Humidity Range |
15% to 95% RH |
| Working Voltage |
DC 24 V |
| Installation |
Wall Mounted or Pipeline Mounted |
| Response Time |
Combustible Gas ≤30 s Toxic Gas ≤60 s |
| Weight |
Approximately 2 kg |
| Ingress Protection |
IP67 |
| Housing Material |
Die Cast Aluminium |
| Sensor Type |
Catalytic combustion for combustible gas or electrochemical for toxic gas depending on configuration |
| Output |
4–20 mA and Modbus depending on configuration |
| Gas Units |
PPM mg m3 Vol percent LEL percent and other units depending on sensor |
| Explosion Proof Mark |
Ex db IIC T6 Gb and Ex tb IIIC T80°C Db as shown in supplied product data |
| Typical Detectable Gases |
CH4 H2S CO O2 CO2 VOC and other compatible gases |
