Express Systems will be Closing EARLY Friday, December 30th, 2022 and will be CLOSED Monday, January 2nd, 2023 in observance of the New Year Holiday. We will resume regular business hours Tuesday, January 3rd, 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.