ALLNET MSR IO Central ALL4175V2 / Network Switching Device 4-fold Relay 230VAC/10A The ALLNET ALL4175V2 4-fold network relay can be used to switch electrical devices via a computer network. Configuration and operation is independent of an operating system via any web browser from a PC, MAC, tablet or smartphone. Additional software is not required. https://elecena.pl/product/19064519/all4175v2-io-central-4-fold 2021-07-14 https://elecena.pl/product/19064519/all4175v2-io-central-4-fold 2023-07-17