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| Brand | HA-Ai |
|---|---|
| Model | HA-H2 |
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Detection Principle | Thermal Conductivity Detection (TCD) |
| Maximum Permissible Error | ±1%–±10% FS |
| Zero Drift | ≤1% FS/24h |
| Span Drift | ≤3% FS/24h |
| Repeatability | ≤2% RSD |
| Compliance | GB/T 37154–2018, GB/T 24549–2009 |
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