USB Relay Controller - Two Channels with clips for DIN mount rail
USB > RS485 > 16 Channel Relay Controller
KMTronic USB Relay Controller One Channel, BOX - Download test software from: http://www.kmtronic.com/software/USB_Relays/KMtronic_USB_Relays_Tester.zip USB One Relay commands: FF 01 00 - OFF command FF 01 01 - ON command FF 01 03 -
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KMtronic Ltd: USB Relay Controller One Channel
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