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Continue to ChatKopp Germany -Wireless Double Channels Relay (Warranty-20 Years) https://smarthomemart.in/product/kopp-germany-rf-receiver-2-channel-4-wire-serial-switch-shutter-controller/
Kopp Germany -Wireless Double Channels Relay (Warranty-20 Years) https://smarthomemart.in/product/kopp-germany-rf-receiver-2-channel-4-wire-serial-switch-shutter-controller/