The case is made of high quality 0,6mm thick brass sheet. The surface is mirror finish polished and lacquered.
Mineral front glass.

Large Hi-Sensitiv barometer with thermometer and hygrometer.
Barometer accuracy: ±7hPa (millibar).
Thermometer -30°C to +70°C. Temperature reading accuracy: ±1ºC (10ºC to 30ºC), ±2ºC (-30ºC to 70ºC).
Hygrometer 0-100% relative humidity.
Hygrometer reading accuracy ±10%.

Delite produces Altitude in Denmark and use suppliers
in France and Germany.