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 is optional. Dial features a very clear metal dial with a print diameter of 42 cm, readable from a greater distance without doubt, with visibility of approx. 30 m in illuminated rooms. The dial is painted white with black Arabic numerals or black DIN bars, according to DIN 41 091. Pointer features a black bar display for hours and minutes, with a ball impact resistant version available. Suitable for use in gymnasiums and sports halls. Robust housing with lever-out safe 3-point fixing. Includes 2-pane laminated safety glass, 6 mm, with very solid workmanship according to DIN 18 032, Part 3. Damp room version is optional. Equipped with encapsulated clock movement, protection class IP 54 EN 60 529, providing complete protection against contact, dust deposits inside, and splash water from any angle. Moisture and dust protected, 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 the battery operation, the large-area wall clock 50x50 cm can be operated independently of the mains.