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| Product Name | KORNO GT-903-Y4(CO,H2S,O2,EX) Gas Detector | Bosean BH-4 Portable 4 in 1 Gas detection alarm instrument |
| Product Price | $469.00 | In coming |
| Details | Details | |
| Model comparison | ||
| Usage Type | Portable | Portable |
| Gas Quantity | Multi-gas | Multi-gas |
| Sensor Principle | Electrochemical Catalytic Bead NDIR | Electrochemical Catalytic Bead |
| Sampling Method | Pumped | Diffusion |
| Detection gas | Ex O₂ CO H₂S | Ex O₂ CO H₂S |
| T90 Response Time | ≤20s | ≤30s |
| Explosion-proof | Ex ia (IS) | |
| IP Rating | IP65 | |
| Data Output | ||
| Parameter comparison | ||
| Detect gas | CO、H2S、O2、EX | Hydrogen sulfide, carbon monoxide, oxygen, flammable gases |
| Range | 0~1000ppm，0~100ppm、0~30%vol、0~100%LEL | EX: 0~100%LEL；O2: 0~30.0%vol；H2S: 0~100ppm；CO: 0~1000ppm |
| resolution | 0.1ppm，0.01ppm，0.01%vol | EX：1%LEL，H2S：1ppm，CO：1ppm，O2: 0.1%vol |
| Humidity | Optional accessories, temperature detection Range: -40~ 120℃, Humidity detection Range: 0~ 100% RH | |
| Sampling method | pump suction | |
| detection accuracy | ≤±3% | |
| Linearity | ≤±1% | |
| Response Time | T90≤20s | <30s |
| Zero drift | ≤ +/- 1% (F. S/year) | |
| recovery time | ≤20s | |
| Repeatability | ≤±1% | |
| detection mode | Real-time detection, timing detection can be set | |
| Data storage | Real-time storage and timed storage can be set; a single channel can store 30,800 sets of data | |
| Explosion-proof sign | Ex ia ⅡC T4 Ga | Exib IIB T3 Gb |
| Shell material | ABS+PC | |
| Protection Rating | IP65 | |
| Operating temperature | -30~60℃ | -20℃~50℃ |
| Environmental humidity | 0~ 95% RH non-condensing | |
| Operating Pressure | -30Kpa~200Kpa | |
| power supply | 4000mA rechargeable polymer battery | |
| Dimension | 180*85*55mm | |
| execution standard | GB3836.1-2010、GB3836.4-2010 | |
