Risco RPKEL0B0000A Elegant black keypad, EN50131-3 grade 3, environmental class 2 PD 6662:2010, current consumption: 12V +/-15%; 100 mA max., main panel connection: 4-wire BUS; up to 300 m from main panel, dimensions: 177 mm x 129 mm x 24 mm, prox. RF frequency: 13.56 MHz