Comparison : |
Item # PDA1002, DIN Rail Mounting Kit for Two Expansion Modules Item # PDA1004, 4-Relay Expansion Module Item # PDA1011, Dual 4-20 mA Output Module Item # PDA1044, 4 Digital Inputs & 4 Digital Outputs Module Item # PDA7485-I, RS-232 to RS-422/485 Isolated Converter
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