Model KTA-2 2-family house variant with silver/aluminium front Silver/with brushed aluminium finish Weather resistant in accordance with IP 44 Replaceable name plate Short-stroke key Easy surface mounting Contact capacity: max. 12 volt/1 ampere Temperature range: -20 to +50°C Dimensions: 90 x 90 x 19 mm (WxHxD) Power supply: 8 - 12-V bell transformer Including mounting material https://elecena.pl/product/17882003/kta-2as-surface-mounted-doorbell-button-2-row-aluminium 2021-04-26 https://elecena.pl/product/17882003/kta-2as-surface-mounted-doorbell-button-2-row-aluminium 2023-04-03