Express Systems will have an EARLY CLOSING Friday, May 26th, 2023 and will be CLOSED Monday, May 29th, 2023 in observance of Memorial Day. We will resume regular business hours Tuesday, May 30th, 2023 at 9:00am EST. Wishing everyone a Happy & Safe Holiday Weekend!
ISD-1110/1130 Series entry-level surge protectors and ISD-1210/1230 advanced surge protectors; RS232 or RS422/485 w/ surge protection and available extended temperature models.