iSMA-B-4O-H | I/O module with Modbus RTU/ASCII or BACnet MSTP communication- 4DO $422.40 SKU: iSMA-B-4O-H MANUFACTURER: iSMA Controlli Parent Item Parent Item - Additional Cost Has Item Option Quantity -+ If you add this item, you're only $378 away from free shipping! Add to Cart Add to Cart Current Stock: 2 Details iSMA-B-4O-H | I/O module with Modbus RTU/ASCII or BACnet MSTP communication- 4DO NC/NO- max. 8 A @ 230 V AC/30 V DC relay with hand operating Documentation Data Sheet DetailsDocumentationBackiSMA-B-4O-H | I/O module with Modbus RTU/ASCII or BACnet MSTP communication- 4DO NC/NO- max. 8 A @ 230 V AC/30 V DC relay with hand operatingBack Data Sheet