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COMMAX CRB-4CH4-channel relay card, lock control function.Doorphones / Accessories / COMMAXEnd user price - Reseller price- 4-channel relay card. - It enables the connection of 4 outdoor units to 1 indoor unit. - Lock control function. - Power supply: from the indoor unit. - Dimensions: 80 mm x 55 mm x 20 mm. - CE certification. |