The packaging includes:– 4 frames to provide compatibility with the most common plates– 3 coloured covers,– 3 special covers for Bticino Axolute and Ave Sistema 44, Eikon Evo,– 3 pairs of coloured adapters,– 1 pair of adapters for Bticino Matix. LCD display: 7-segment symbols and digits. LED, back lighting (blue) display. Adjustable backlight duration. Possibility to visualize Celsius or Fahrenheit temperature values. Maximum ambient temperature 45 °C. Settable differential. Protection degree IP20. Electric featuresContacts rating: 5(3)A 250Vac. Power supply without connection to the electric circuit with two 1,5 V AAA alkaline batteries for CH121. Micro disconnection (1BU). Voltage-free switching contact.