Product History
| Rel. | Date | IPI | New Features | Problems Resolved |
| KG | Nov-06 | GFK-2412C | Improved gasket material | NA |
| JG | Apr-06 | GFK-2412B | Updated operating system. | See GFK-2412B |
| JF | Jan-06 | GFK-2412A | The products are certified to Underwriter's Laboratories UL 50 Type 4x rating for Enclosures for Electrical Equipment and are suitable for indoor or outdoor use in accordance with the UL standard. | NA |
| HF | Aug-05 | GFK-2412 | The products listed are labeled for UL50 type 4X indoor use. |