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| Product Name | SMART SENSOR AS8900 Gas Detector | KORNO GT903-F4（CO、H2S、O2、EX） Portable four-in-one Detector |
| Product Price | $288.00 | In coming |
| 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 Pumped | Pumped |
| Detection gas | Ex O₂ CO H₂S | Ex O₂ CO H₂S |
| T90 Response Time | Others | ≤20s |
| Explosion-proof | Ex ia (IS) | |
| IP Rating | IP65 | |
| Data Output | ||
| Parameter comparison | ||
| Detect gas | O2、CO、H2S、Ex | Simultaneous detection: H2S, CO, O2, EX gas, H2S (High Performance Japanese Basic Sensor), CO (High Accuracy Japanese Basic Sensor), EX (Imported Japanese Basic Catalytic combustion Sensor), O2 (Swiss MEMBRAPOR Imported Sensor) |
| Range | Oxygen: 0~ 30% vol Carbon monoxide: 0~ 999ppm hydrogen sulfide: 0~ 500ppm Combustible gas: 0~ 100% LEL | EX Range 0-100% LEL, H2S Range 0-100ppm, CO Range 0-1000ppm, O2 Range 0-30% VOL |
| intrinsic error | <±0.1% | |
| Response Time | <50s | T90≤20s |
| recovery time | <50s | ≤ 20 seconds |
| Sensor principle | electrochemistry | |
| Alarm mode | Sound, light. | |
| Operating temperature | -10~50℃ | |
| Environmental humidity | 15~95%RH | |
| power supply | 3.7V lithium battery | |
| weight | 200g | 0.5 Kg (Net weight) |
| Standard outer box capacity | 24 | |
| Packaging Dimensions | 46*45.5*55mm | |
| gross weight | 19.5kg | |
| pump | optional | |
| Flow velocity of sampling pump | 0.5SCFH | |
| Battery model | KXD-N3310 | |
| display screen | Segmented LCD | |
| Maximum open circuit Voltage | ≤4.2V | |
| short circuit current | ≤3A | |
| Operating Current | 160mA | |
| Dimension | 120.20mmx64.50mmx38.30mm | 180*85*55mm |
