12V water leak detectors

12 В

— powered by DC with 12 V voltage. Usually this marking means that the device actually operates from the 230 V, but uses an external power supply. From a safety point of view, this option is convenient because the external adapter is located directly in the socket and all dangerous voltage remains in its same area – a wire with a reduced voltage goes to the device. It may also be possible to connect directly to low-voltage DC, but this point should be clarified separately.