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| Product Name | GaoPin NGP8-M400 Portable 4 in 1 Gas Detector | SMART SENSOR ST8900 Gas Detector |
| Product Price | In coming | $241.00 |
| Details | Details | |
| Model comparison | ||
| Usage Type | Portable | Portable |
| Gas Quantity | Multi-gas | Multi-gas |
| Sensor Principle | Electrochemical Catalytic Bead | Electrochemical Catalytic Bead |
| Sampling Method | Diffusion | Diffusion |
| Detection gas | Ex O₂ CO H₂S | Ex O₂ CO H₂S |
| T90 Response Time | ≤10s | |
| Explosion-proof | Ex ia (IS) | |
| IP Rating | IP65 | |
| Data Output | ||
| Parameter comparison | ||
| Detect gas | CO, H2S, O2, combustible gases | Oxygen/carbon monoxide/hydrogen sulfide/combustible gas |
| CO Range | 0~1000 ppm | |
| H2S Range | 0~100 ppm | |
| O2 Range | 0~30 %Vol | |
| EX Range | 0~100 %LEL | |
| CO resolution | 1 ppm | |
| H2S resolution | 0.01 ppm | |
| O2 resolution | 0.01 %Vol | |
| EX resolution | 0.1 %LEL | |
| Detection principle | Electrochemistry and catalytic combustion | |
| display screen | LCD liquid crystal display | Segmented LCD |
| sampling method | diffusion | |
| shell material | ABS | |
| dimensions | 125*52*30mm (L*W*H) | |
| Explosion-proof sign | Exia II CT6 | |
| Protection Rating | IP65 | |
| weight | 200 g | 360g |
| accuracy | ±3% F.S. | |
| Concentration unit | ppm、%VOL、%LEL、mg/m³ | |
| Alarm method | Sound and light, vibration | Sound, light and shock triple alarm, the alarm value can be set, and the alarm sound can reach 80 decibels |
| Operating temperature | -40~70℃ | |
| operating humidity | 0~ 95% RH (non-condensation) | |
| working Voltage | 3.6 VDC | 3.7V |
| Alarm current | 150 mA | |
| Operating Current | 10 mA | 230mA |
| battery capacity | 1800 mAh (with charge protection circuit) | |
| Charger specifications | 4.2 VDC, 1 A | |
