Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor with Bilingual Alarm Explosion-Proof
ONETEST-G40 Voice-Prompt Multi-Gas Detector
The ONETEST-G40 is a professional 4-in-1 gas detector designed for continuous monitoring of combustible gas, oxygen (O2), hydrogen sulfide (H2S), and carbon monoxide (CO) concentrations in hazardous environments. Equipped with high-quality imported sensors and advanced microcomputer control technology, it delivers exceptional sensitivity and outstanding repeatability.
Key Features
- Real Human-Voice Alarm: Bilingual (Chinese/English) voice prompts clearly announce gas hazards, complemented by vibration and visual light alarms for triple-layer safety notification.
- 4-in-1 Detection: Simultaneously monitors combustible gas (0-100%LEL), oxygen (0-30%VOL), hydrogen sulfide (0-100PPM), and carbon monoxide (0-1000PPM).
- Explosion-Proof Certified: Meets GB 15322.1-2019, GB 12358-2006, GB/T 3836.1-2021, and GB/T 3836.4-2021 standards for safe operation in hazardous locations.
- Dot-Matrix LCD Display: Clear bilingual interface for quick access to gas readings and device status.
- Rugged ABS Housing: High-strength engineering plastic with excellent impact resistance and premium finish, weighing only 205g.
- Customizable Gas Sensors: Supports catalytic combustion, electrochemical, infrared, or PID detection principles. Additional gas types available upon request including ozone (O3), chlorine (Cl2), ammonia (NH3), and more.
Applications
Widely deployed in petroleum, chemical, environmental protection, metallurgy, oil refining, gas distribution, biochemical and pharmaceutical, agriculture, fire protection, and archaeology sectors for personnel safety and equipment protection.
Standard Gas Parameters
| Gas Type | Range | Low Alarm | High Alarm | Resolution |
|---|---|---|---|---|
| Combustible (EX) | 0-100%LEL | 20%LEL | 50%LEL | 1%LEL |
| Oxygen (O2) | 0-30%VOL | 19.5%VOL | 23.5%VOL | 0.1%VOL |
| Hydrogen Sulfide (H2S) | 0-100PPM | 10PPM | 35PPM | 1PPM |
| Carbon Monoxide (CO) | 0-1000PPM | 150PPM | 300PPM | 1PPM |
Technical Specifications
| Item | Specification |
|---|---|
| Detection Principle | Catalytic Combustion, Electrochemical, Infrared, PID |
| Display Error | ≤ ±5% F.S. |
| Response Time | ≤ 30 s |
| Display | Dot-Matrix LCD |
| Detection Method | Diffusion Type |
| Alarm Method | Real Human-Voice, Vibration, Light Alarm |
| Housing Material | ABS Engineering Plastic |
| Operating Temperature | -10℃ ~ +55℃ |
| Operating Humidity | 10~95% RH (Non-Condensing) |
| Operating Voltage | DC 3.7V |
| Operating Pressure | 86~106 KPa |
| Weight | 205 g |
| Dimensions | 140 mm * 73 mm * 32 mm |
| Applicable 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 |
Note: Standard 4-in-1 gas combination shown above. Custom gas combinations available upon request — contact us for ozone (O3), chlorine (Cl2), ammonia (NH3), and other gas sensor configurations.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.