I. Requirements Analysis:

Toxic and hazardous gas detectors are designed to monitor potential gas leaks in industrial, mining, and chemical sectors. These devices provide real-time detection and display of multiple toxic and hazardous gas concentrations in the air, including hydrogen sulfide (H₂S), carbon monoxide (CO), combustible gases (LEL), and oxygen (O₂). Through continuous monitoring, this product provides timely warnings of potential safety hazards, ensuring the safety of personnel and environmental stability.

II. Product Features:

1. Automatic Identification Function: The detector possesses the capability to automatically identify different gases, accurately distinguishing and detecting the concentrations of various toxic and harmful gases;

2. Waterproof and Explosion-Proof Performance: The product features a waterproof design, enabling normal operation in humid environments. Additionally, it possesses explosion-proof capabilities, making it suitable for flammable and explosive locations to ensure safety during the detection process.

3. Multi-Gas Detection: Simultaneously monitors concentrations of multiple toxic and hazardous gases including oxygen, combustible gases (LEL), carbon monoxide, hydrogen sulfide, and more, meeting diverse application requirements.

4. Diffusion Sampling: The detector employs diffusion sampling technology, enabling rapid response to changes in gas concentration for real-time monitoring.

5. Wide Detection Range: Extensive detection capabilities cover H₂S from 0-100 ppm, CO from 0-500 ppm, combustible gases from 0-99% LEL, and O₂ from 0-30% by volume, meeting gas detection requirements across diverse environments.

6. LCD Display and Alarm Function: The LCD screen simultaneously displays detection concentrations for four gases and features automatic backlighting. When gas concentrations exceed preset thresholds, the detector automatically triggers a 95dB audible alarm, a wide-angle bright light alarm, and a vibration alarm to alert personnel to take immediate safety measures.

7. Automatic Zero Adjustment and Calibration: The product features automatic zero adjustment and calibration capabilities to ensure the accuracy and stability of detection results.

8. Data logging function: The detector can record 16 hours of data, allowing users to review and analyze detection data at any time, thereby providing a basis for safety management.

9. Compliance with Technical Standards: The product meets relevant national technical standards, ensuring its quality and performance meet industry standards.

III. Application Scenarios:

Toxic and hazardous gas detectors are widely used in industries such as manufacturing, mining, chemical processing, and environmental protection. They can be deployed in production sites, warehouses, laboratories, and other locations to detect gases, promptly identify and address potential safety hazards, and ensure personnel safety and environmental stability. Additionally, they serve critical roles in emergency response and accident investigations, providing robust support for incident management and root cause analysis.

IV. Product Specifications:

Serial Number	Project Name	Technical Specifications
1	-	Features automatic recognition, waterproof, and explosion-proof capabilities
2	-	Real-time on-site detection of oxygen, combustible gases (LEL), carbon monoxide, hydrogen sulfide, and other toxic and hazardous gases in the air, diffusion sampling.
3	Scope of Monitoring	H2S: 0-100 ppm, C0: 0-500 ppm
4	Combustible gas	0-99% LEL, O₂: 0-30% by volume
5	-	The LCD screen simultaneously displays four gas detection concentrations, featuring automatic backlighting, automatic zero adjustment, and calibration. It offers continuous monitoring with a 95dB audible alarm, a wide-angle bright light alarm, and a vibration alarm.
6	-	Features 16-hour data logging capability. The product complies with relevant national technical standards.