SIS-TAG® brand Safety Instrumented System device identification tags provide for high visibility and asset management of safety critical devices in harsh environments in the process industries.  SIS-TAGs in silver and black with RFID offer high visibility and RFID identification under the most extreme conditions including heat, humidity, long-term exposure to weather, UV and other outdoor conditions, salt spray, abrasion, industrial solvents, chemicals and more.  For higher visibility we recommend SIS-TAGs in gold tone and black with RFID.