| DOOR CONTROLS INTERN | DEXTER | 734-426-0400 |
| IDN HOFFMAN | GRAND RAPIDS | 616-534-1067 |
| IDN HARDWARE | LIVONIA | 734-466-7490 |
| COMPUTERIZED SECURITY | MADISON HEIGHTS | 248-837-3700 |
| DIGITAL SYSTEMS | MT PLEASANT | 989-773-2363 |
| JLM WHOLESALE | OXFORD | 800-522-2940 |
| IDN HARDWARE | WARREN | 800-468-7490 |
