Express Systems will be Closing EARLY Wednesday, November 22nd, 2023 and will be CLOSED Thursday, November 23rd, 2023 & Friday, November 24th, 2023 in observance of the Thanksgiving Holiday. We will resume regular business hours Monday, November 27th, 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.