Express Systems will be CLOSED Friday, April 15th, 2022 in observance of the Easter Holiday. We will resume regular business hours Monday, April 18th, 2022 at 9:00am. 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.