The Whirling Hygrometer Model 116 (commonly manufactured by Elcometer as the Elcometer 116A) is an industrial-grade, non-electronic instrument used across Pakistan for measuring relative humidity (%RH) and dewpoint. It operates manually via the wet-bulb and dry-bulb evaporative cooling principle, requiring no batteries or power source.
Core Technical Specifications
- Temperature Range: -5°C to 50°C (23°F to 122°F)
- Accuracy: Within ±0.5°C
- Thermometers: Spirit-filled liquid tubes for environmental safety.
- Compliance Standards: Fully conforms to global testing standards including ASTM E 337-B, BS 2842, and ISO 8502-4.
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