WA-804 4-in-1 Gas Detector (4 Gases)
Details
First of all, thank you for choosing our Voice-type Multi-gas Detector (hereinafter referred to as the Detector). This 804 detector is a safety device designed for continuous monitoring of leaking gas concentrations. Equipped with high-quality imported gas sensors, it offers exceptional sensitivity and repeatability.
The instrument features a dot-matrix LCD display, supporting both Chinese and English interfaces as well as bilingual voice prompts, enabling users to quickly access product information with simple operation and maintenance. Housed in high-strength engineering plastic, it boasts superior shock resistance, high mechanical strength, and an elegant appearance. It also holds explosion-proof certification, making it suitable for use in hazardous areas.
This detector is widely applied in industries and sites requiring safety monitoring of toxic and harmful gases and explosion risk prevention, including petroleum, chemical, environmental protection, metallurgy, refining, gas, biopharmaceuticals, agriculture, fire protection, and archaeology. It effectively monitors hazardous gas concentrations and triggers timely alarms, safeguarding both the lives of workers and the integrity of production equipment.
| Gas Type | Measuring Range | Low Alarm Threshold | High Alarm Threshold | Resolution |
| Combustible Gas | 0¨C100% LEL | 20% LEL | 50% LEL | 1% LEL |
| Oxygen (O₂) | 0¨C30% VOL | 19.5% VOL | 23.5% VOL | 0.1% VOL |
| Hydrogen Sulfide (H₂S) | 0¨C100 PPM | 10 PPM | 35 PPM | 1 PPM |
| Carbon Monoxide (CO) | 0¨C1000 PPM | 150 PPM | 300 PPM | 1 PPM |
General Product Specifications
- Detection Principle: Catalytic combustion, electrochemical, infrared, photoionization PID, thermal conductivity, etc. (determined by the product sensor)
- Display Error: ¡Ü ¡À5% F.S.
- Response Time: ¡Ü 30 seconds
- Display Method: LCD dot matrix screen
- Detection Method: Diffusion type
- Alarm Method: Voice alarm, vibration alarm, light alarm
- Product Material: ABS
- Operating Temperature: -10¡ãC ~ +55¡ãC
- Operating Humidity: 10~95% RH (non-condensing)
- Charging Interface: Type-C
- Operating Voltage: DC 3.7V
- Operating Pressure: 86~106 KPa
- Product Weight: 205 g
- Product Dimensions: 140 mm ¡Á 73 mm ¡Á 32 mm
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Execution Standards:
- GB 15322.1-2019
- GB 12358-2006
- GB/T 3836.1-2021
- GB/T 3836.4-2021
- JJF 1368-2012
- JJF 1363-2019
- JJF 1421-2013
