Here are the specifications:
| Operating voltage | 5V |
| Load resistance | 20 KΩ |
| Heater resistance | 33Ω ± 5% |
| Heating consumption | <800mw |
| Sensing Resistance | 10 KΩ – 60 KΩ |
| Concentration Range | 200 – 10000ppm |
| Preheat Time | Over 24 hour |
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