SPA offers SI 300- LC series of Signal Isolator with single input, dual output facility. This instrument provides three port Galvanic & Optical isolation for field signals. This 24 VDC operated compact and cost effective product is most suitable for signal isolator and multiplier requirements. Transmitter power supply 24 VDC/30 mA is available on input terminals with link selection. User can configure for external or internal transmitter power supply.