30 mm ?3 10 x 7 dot matrix LED display;" 32 pieces ?3 LED arrows;" 100 Hz scanning frequency, 1/5 duty factor;" Several mounting options;" 12V - 30V DC supply;" 9 pin pluggable terminal blocks;" Gray and binary coded inputs;" Direction arrows input;" Unlimited font selection, bitmapped fonts;" EEPROM type memory, no need to preorder;" Perfect solution to display floor numbers with different scrolling techniques;" Direction arrows on board.