High temperatures resistant door phones

> +50 °C

— models capable of operating normally when heated to +50 °C or higher. Such properties can be useful not only in hot climates, but also if the device is exposed to direct sunlight: under the rays of the sun, even in cool weather, the body of the call panel can heat up to quite high temperatures.

Note that the specific maximum and minimum operating temperatures in such models may be different, they should be specified separately.