Express Systems will have an EARLY CLOSING Thursday, June 19th, 2025 and will be CLOSED June 20th, 2025 in observance of Juneteenth. We will resume regular business hours Monday, June 23rd, 2025 at 9:00am EST.
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.