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USB Relays

TSRU430- 4 Channel 30A USB Relay Board

The TSRU430 provides four volt free contact relay outputs with a current rating of up to 30A..

$59.95

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TSTR04 - 4 Channel Outputs 4 Temperature Sensors USB Relay (Thermostats)

Description: This is a TSTR04 USB relay board which has an OLED display and 4 temperature se..

$36.00

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