"RM-4E Enhanced RM-4 board With two relay outputs, battery backup feature. 5-pack"RM-4E-5PKSKU: RM-4E-5PKTechnical Specifications RM-4E Enhanced RM-4 board With two relay outputs, battery backup feature. 5-pack Descarga de ManualManual Descarga de Ficha TécnicaFicha Técnica en Español