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| Brand | Tianwei Environmental (TW) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | TW-WQX12 |
| Power Consumption | 0.84 W |
| Communication Interface | RS485 (MODBUS RTU standard), optional RS232 / USB / Ethernet / Wireless (1-min minimum transmission interval) |
| Housing Material | UV-stabilized ASA engineering plastic |
| Mounting | Flange-based fixed installation |
| Certifications | Compliant with GB/T 35227–2017 (Meteorological Instruments – General Requirements), RoHS Directive 2011/65/EU, CE marking for EMC and LVD |
| Brand | Shandong Tianwei Environment (TW) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TW-WQX6 |
| Price | USD 780 (FOB Qingdao) |
| Communication | RS485 (MODBUS RTU), optional RS232/USB/Ethernet/Wireless (GPRS/LTE, min. 1-min interval) |
| Housing Material | UV-stabilized ASA engineering plastic |
| Mounting | Flange base with north indicator |
| Compliance | IP66, RoHS, CE-marked for industrial environmental use |
| Sensor Architecture | Solid-state, no moving parts, maintenance-free design |
| Brand | Tianwei Environmental (TW) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TW-BF1 |
| Power Consumption | 1.75 W |
| Battery Capacity | 12,000 mAh (≥50 h runtime) |
| Spectral Range | 280–3000 nm |
| Response Time (95%) | 13 s |
| Zero Offset (Thermal) | ±10 W/m² |
| Zero Offset (Temperature) | ±3 W/m² |
| Nonlinearity | ±1% |
| Stability (1 year) | ±2% |
| Cosine Response Error | ≤±5% at 30° solar elevation |
| Directional Response Error | ±18 W/m² |
| Spectral Error | ±3% |
| Temperature Response (−10 to +40 °C) | ±3% |
| Tilt Error | ±1% |
| Sensitivity | 7–14 µV/(W·m⁻²) |
| Internal Resistance | ≤800 Ω |
| Operating Temperature | −40 to +85 °C |
| Operating Humidity | 5–90% RH |
| Data Storage Capacity | ≥500,000 records |
| Weight | ≤5 kg |
| Deployment Time | ≤2 min (single operator) |
| Compliance | ISO 9060:2018 (First Class), WMO CIMO Guide, GB/T 19565–2017 |
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