4Ch DC 12V/24V 4AI-4DI-4DO 4-20MA 0-5V 0-10V Analog Digital Mixed IO Module Modbus RTU RS485 Relay
$17.60
4Ch DC 12V/24V 4AI-4DI-4DO 4-20MA 0-5V 0-10V Analog Digital Mixed IO Module Modbus RTU RS485 Relay