Large radio clock 50x50 cm with battery operation. Radio clock DCF77. Battery operation 2x 1.5 V. For indoor use. Approx. 4.8 kg. Housing dimensions LxWxD 50x50x10 cm. Very sturdy aluminum housing painted white (RAL 9016). Front glass made of Plexiglas XT. Ball-proof design of 2-pane laminated safety glass available as an option. Dial features a very clear metal design with a print diameter of 42 cm, readable from a greater distance, with visibility of approximately 30 m in illuminated rooms. The dial is painted white with black Arabic numerals or black DIN bars according to DIN 41 091. Pointer displays hours and minutes in black bar format, with a ball impact resistant version available as an option. Suitable for use in gymnasiums and sports halls, it has a robust housing with lever-out safe 3-point fixing and 6 mm 2-pane laminated safety glass. Very solid workmanship according to DIN 18 032, Part 3. Damp room version available as an option. The clock movement is encapsulated with a protection class of IP 54 EN 60 529, providing complete protection against contact, dust deposits inside, and splash water from any angle. Moisture and dust protected, this clock is only suitable for indoor use. The radio clock DCF77 is synchronized by the time signal transmitter DCF77 in Mainflingen, ensuring the time is always correct to the second. The time setting and summer-winter time changeover are fully automatic. Due to battery operation, the large-area wall clock can be operated independently of the mains.