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| Product Name | KORNO GT-903-O2-Y Oxygen Detector | Bosean GQ-DX101-O2 Gas Detector |
| Product Price | $298.00 | $183.00 |
| Details | Details | |
| Model comparison | ||
| Usage Type | Portable | Fixed |
| Gas Quantity | Multi-gas | Single gas |
| Sensor Principle | Electrochemical Catalytic Bead NDIR Semiconductor Thermal Conductivity Laser | |
| Sampling Method | Pumped | Diffusion |
| Detection gas | O₂ | Ex O₂ CO H₂S NH₃ Cl₂ SO₂ NO NO₂ H₂ HCl O₃ CO₂ HCHO VOCs Others |
| 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 | Oxygen O2 | |
| Range | 0~30%vol | 0~30% |
| resolution | 0.01%vol | 0.1%vol |
| Response Time | T90≤20s | <30s |
| Linearity | ≤±1% | |
| detection accuracy | ≤±3% | |
| Zero drift | ≤ +/- 1% (F. S/year) | |
| recovery time | ≤20s | |
| Repeatability | ≤±1% | |
| expansion gas | Supports 1-4 Sensors | |
| Explosion-proof sign | CNEx16.0538 | CNEx16.0449, Exd ⅡC T6 Gb |
| Protection Rating | IP65 | |
| production license | Guangdong 00001052 (CMC metrology authentication) | |
| Humidity | Optional accessories, temperature detection Range: -40~ 120℃, Humidity detection Range: 0~ 100% RH | |
| Sampling method | pump suction | |
| detection mode | Real-time detection, timing detection can be set | |
| Data storage | Real-time storage and timed storage can be set; 120,000 groups of data can be stored | |
| Operating temperature | -30~60℃ | -10~40℃ |
| Environmental humidity | 0~ 95% RH non-condensing | 0~ 95% RH non-condensing |
| Operating Pressure | -30~100Kpa | |
| power supply | 4000mA rechargeable polymer battery | DC 24V +/- 15% |
| Dimension | 180*85*55mm | 193*140*93mm |
| Net weight | 0.5Kg | |
| execution standard | GB3836.1-2010、GB3836.4-2010 | |
| optional Range | 0~1000、5000、10000、30000ppm、5%、30%、100%.Vol | |
