PRODUCT DESCRIPTION
The TH-RZ is a mechanical dark-tube sunshine recorder for daily sunshine-duration observation, following the classic meteorological method. It records between 05:00 and 19:00 across latitudes from 0 to 60 degrees with a recording-time error of ±3 minutes — no power, no electronics.
Its simple, robust construction suits long-term station use where a direct, verifiable sunshine record is required.
SPECIFICATIONS
| Recording Time | 05:00–19:00 |
| Latitude Range | 0–60° |
| Recording-Time Error | ±3 min |
| Dimensions | 175 × 175 × 130 mm |
| Weight | 3 kg |
| Output / Communication | Manual / visual reading |
| Power Supply | None (mechanical operation) |
PRODUCT APPLICATION
The TH-RZ dark-tube sunshine recorder is widely used in meteorological sunshine-duration observation.
It is suitable for national weather-station networks, climate archives, and teaching observatories that maintain traditional sunshine records.
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