The TFA 40.1052 Thermohygrometer is a combined analogue thermometer and hygrometer (thermohygrometer) specifically designed for sauna environments, allowing users to monitor both temperature (up to 120°C) and humidity (0–100% RH) for optimal comfort and safety. The clearly marked optimal sauna zone makes it easy to maintain ideal conditions at a glance.
Built with a solid oiled oak frame, this model offers both durability and a premium natural look. Its bimetal thermometer and synthetic-hair hygrometer mechanism provide reliable, maintenance-free measurements, while heat-resistant materials ensure long-term performance even in high-temperature sauna conditions.
Features
- Measures both temperature and humidity in sauna environments
- Temperature range up to 120°C
- Humidity range: 0–100% RH
- Colour-marked optimal sauna comfort zone
- High-precision synthetic-hair hygrometer mechanism
- Bimetal thermometer for reliable readings
- Solid oiled oak frame with premium finish
- Heat-resistant construction for sauna use
- Clear analogue dial for easy reading
- Wall-mounted design
- Made in Germany
Technical Specifications
| Model | 40.1052 |
| Measurement Type | Temperature + Humidity |
| Temperature Range | 0°C to 120°C |
| Humidity Range | 0% to 100% RH |
| Measurement Principle | Bimetal (temperature) / Synthetic hair (humidity) |
| Material | Oiled solid oak wood |
| Mounting | Wall-mounted |
| Dimensions | 130 × 40 × 242 mm |
| Weight | ≈371 g |
| Origin | Made in Germany |





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