4 Channel Wireless Relay Module 4DI 4DO 433M RS485 Transmitter Receiver Rela

Item Type: Wireless Relay Module. [MATCHING DEVICES] Can be used with RT5BF01 wireless transmission module or other for N4RFA04 devices to use the wireless remote IO function. 1 x Relay Module. Wireless Working Frequency: 426MHz-508.5MHz, 16 channels, channel interval 5.5MHz, default 426MHz.

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