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Specifications
The Testo 623 is a compact digital thermohygrometer designed for continuous monitoring of temperature and relative humidity. It displays current readings along with historical data and provides a 90-day statistical snapshot, making it suitable for laboratories, offices, storage areas, museums, archives, and other controlled environments.
Key Features
- Measures temperature and relative humidity
- 90-day measurement history and statistical snapshot
- Large, easy-to-read display
- Shows current readings, previous recorded values, time and date
- Visual alarm when preset temperature or humidity limits are exceeded
- Automatic data logging at adjustable intervals from 5 minutes to 24 hours
- Long-term stable humidity and temperature sensors
- Suitable for wall or table mounting
- Compact and lightweight design
- Continuous monitoring for long-term environmental control
| Specification | Testo 623 |
|---|---|
| Temperature Range | -10 to +60 °C |
| Temperature Accuracy | ±0.4 °C |
| Temperature Resolution | 0.1 °C |
| Humidity Range | 0 to 100 %RH |
| Humidity Accuracy | ±3 %RH* |
| Humidity Resolution | 0.1 %RH |
| Measuring Rate | 20 seconds |
| Dimensions | 185 × 105 × 36 mm |
| Weight | 240 g |
| Protection Class | IP30 |
| Battery | 4 × AA batteries |
| Battery Life | Up to 12 months |
| Operating Temperature | -10 to +60 °C |
| Storage Temperature | -20 to +60 °C |
| Housing | ABS |
* Humidity accuracy varies depending on the measurement range and conditions.
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