Velleman K6400 CODE LOCK This code lock may be used to switch an alarm (e.g. car alarm K3504) on and off, or to open a door lock. An LED on the operating panel indicates the position of the 'lock'. The code is easy to define. Because the operation panel is completely enclosed, it may be used inside and outside the house. Specifications more than 3000 codes (4 digits) relay output: 5A / 220V time https://elecena.pl/product/16455189/code-lock 2020-04-14 https://elecena.pl/product/16455189/code-lock 2020-09-01 https://elecena.pl/product/16455189/code-lock 2021-03-02 https://elecena.pl/product/16455189/code-lock 2025-07-09