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| Brand | HUANKONG |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Measurement Range | 0–500 ppb (expandable) |
| Limit of Detection (LOD) | ≤1 ppb |
| Response Time (T90) | ≤20 s |
| Zero Drift | ±2 ppb max over 24 h |
| Resolution | ≤1% of full scale |
| Display | 5-inch capacitive touchscreen |
| Positioning | Integrated BeiDou/GPS dual-mode module |
| Power Supply | Rechargeable high-capacity Li-ion battery |
| Data Connectivity | Wi-Fi, 4G LTE, Bluetooth |
| Onboard Storage | 8 GB internal flash memory |
| Filter Maintenance | Replaceable particulate filter (days), hydrophobic ozone scrubber (6 months) |
| Compliance | GB/T 18883–2022, HJ 590–2010, JJG 1077–2012, HJ 654–2013 |
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