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| Product Name | KORNO GT-903-Y4(CO,H2S,O2,EX) Gas Detector | Bosean GQ-DX101-H2S Gas Detector |
| Product Price | $469.00 | $177.00 |
| Details | Details | |
| Model comparison | ||
| Usage Type | Portable | Fixed |
| Gas Quantity | Multi-gas | Single gas |
| Sensor Principle | Electrochemical Catalytic Bead NDIR | Electrochemical |
| Sampling Method | Pumped | Diffusion |
| Detection gas | Ex O₂ CO H₂S | H₂S |
| T90 Response Time | ≤20s | ≤30s |
| Explosion-proof | Ex ia (IS) | Ex d (Flameproof) |
| IP Rating | IP65 | |
| Data Output | 4-20mA RS485 | |
| Parameter comparison | ||
| Detect gas | CO、H2S、O2、EX | |
| Range | 0~1000ppm，0~100ppm、0~30%vol、0~100%LEL | 0~100ppm |
| resolution | 0.1ppm，0.01ppm，0.01%vol | 1ppm |
| 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 | CNEx16.0449, Exd ⅡC T6 Gb |
| Shell material | ABS+PC | die casting aluminum |
| Protection Rating | IP65 | |
| Operating temperature | -30~60℃ | -10~40℃ |
| Environmental humidity | 0~ 95% RH non-condensing | 0~ 95% RH non-condensing |
| Operating Pressure | -30Kpa~200Kpa | |
| power supply | 4000mA rechargeable polymer battery | DC 24V +/- 15% |
| Dimension | 180*85*55mm | 193*140*93mm |
| execution standard | GB3836.1-2010、GB3836.4-2010 | |
