The case is made of high quality 0,8mm thick brass sheet. The surface is mirror finish polished and lacquered.
Front glass is PMMA (Acrylic glass).
Thermometer: -20°C to +60°C.
Hygrometer: 0-100% relative humidity.
Temperature reading accuracy: ±1ºC (10ºC to 30ºC), ±2ºC (-20ºC to 60ºC).
Hygrometer reading accuracy ±10%.
Made in Denmark by Delite.